{"id":5320,"date":"2026-03-05T01:08:04","date_gmt":"2026-03-05T01:08:04","guid":{"rendered":"http:\/\/dwi.dk\/?page_id=5320"},"modified":"2026-06-25T13:22:31","modified_gmt":"2026-06-25T13:22:31","slug":"guide-til-laekagesoegning","status":"publish","type":"page","link":"https:\/\/dwi.dk\/en\/guide-til-laekagesoegning\/","title":{"rendered":"Leak detection guide"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"5320\" class=\"elementor elementor-5320\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-72b3a9f2 elementor-section-height-min-height elementor-section-items-stretch elementor-section-content-middle elementor-section-boxed elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"72b3a9f2\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-584c6601\" data-id=\"584c6601\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1d05312 elementor-widget elementor-widget-heading\" data-id=\"1d05312\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Leak detection<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74b2bffc elementor-widget elementor-widget-heading\" data-id=\"74b2bffc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Guide to leak detection in water supplies <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-11abf6c elementor-widget elementor-widget-heading\" data-id=\"11abf6c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">We help water utilities reduce their water losses and increase operational reliability. Below we have created a short guide to effective leak detection in the water distribution network.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c0f4a36 elementor-align-left elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"3c0f4a36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/dwi.dk\/en\/medarbejdere\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4fed47b8 elementor-section-content-middle elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"4fed47b8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-508dcb1b\" data-id=\"508dcb1b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-70fdbbf6 elementor-widget elementor-widget-text-editor\" data-id=\"70fdbbf6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>How do you find a leak in a water supply network \u2013 and how do you work systematically to reduce water loss?<\/p><p>Leak detection is a central discipline in modern water supply. Even small leaks can lead to large losses of water, energy and resources over time. That is why many utilities today work systematically with leak detection, monitoring and analysis.<\/p><p>This guide provides an overview of leak detection methods, how the work is carried out in practice, and how it forms part of an overall <a href=\"\/en\/strategi-for-reduktion-af-nrw\/\">strategy for reducing water loss (NRW)<\/a>.<\/p><p>We combine technical expertise, advanced methods and many years of experience with leak detection on complex supply systems \u2013 and we always work with a focus on precise troubleshooting and qualified decision-making.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7c200012\" data-id=\"7c200012\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4af077e4 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"4af077e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4995-768x1024.png\" class=\"attachment-large size-large wp-image-7073\" alt=\"\" srcset=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4995-768x1024.png 768w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4995-225x300.png 225w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4995-9x12.png 9w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4995.png 960w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1097c4d2 elementor-section-content-middle elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"1097c4d2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7c9a23fb\" data-id=\"7c9a23fb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-77ea3998 elementor-widget elementor-widget-image\" data-id=\"77ea3998\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_5017.png\" title=\"IMG_5017\" alt=\"IMG_5017\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-4fb3e611\" data-id=\"4fb3e611\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6c8a5f1f elementor-widget elementor-widget-heading\" data-id=\"6c8a5f1f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How do you find a water leak? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-82cca92 elementor-widget elementor-widget-text-editor\" data-id=\"82cca92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Most leaks in a water supply network are detected through a combination of analysis, measurements and acoustic equipment.<\/p><p>A typical process looks like this:<\/p><ol><li>Analysis of night consumption and water balance<\/li><li>Delimitation of zone or line section<\/li><li>Acoustic listening for leak noise<\/li><li>Correlation measurement between two points<\/li><li>Confirmation and precise localization.<\/li><\/ol><p><br \/>In modern water supplies, the process is often supplemented with data loggers and analysis tools that can indicate leaks earlier.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4e4218b6 elementor-section-content-middle elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"4e4218b6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-35e7fc60\" data-id=\"35e7fc60\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e511a34 elementor-widget elementor-widget-heading\" data-id=\"e511a34\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is leak detection? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-433a7bb elementor-widget elementor-widget-text-editor\" data-id=\"433a7bb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Leak detection is the process of locating hidden leaks in a water supply network before they develop into larger breaks.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">In many cases, leaks are not visible on the surface. Water can disappear into the ground for a long time without obvious signs.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Therefore, technical methods are used to:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><ul><li><span data-contrast=\"auto\"> identify leak noise<\/span><\/li><li><span data-contrast=\"auto\"> analyze pressure and flow<\/span><\/li><li><span data-contrast=\"auto\"> monitor changes in wiring<\/span><\/li><li><span data-contrast=\"auto\"> locate the position of the leak<\/span><\/li><\/ul><p><span data-contrast=\"auto\"><br \/>The aim is to detect leaks early and reduce water loss.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-56d47a6c\" data-id=\"56d47a6c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6e6a2e31 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"6e6a2e31\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4876-1024x768.png\" class=\"attachment-large size-large wp-image-7092\" alt=\"\" srcset=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4876-1024x768.png 1024w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4876-300x225.png 300w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4876-768x576.png 768w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4876-16x12.png 16w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4876.png 1280w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-25db1420 elementor-section-height-min-height elementor-section-items-stretch elementor-section-content-middle elementor-section-boxed elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"25db1420\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7d2cf4a8\" data-id=\"7d2cf4a8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6ef24a2 elementor-widget elementor-widget-image\" data-id=\"6ef24a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"773\" height=\"1030\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2022\/06\/Utaet-vandledning-e1656513757890.jpg\" class=\"attachment-full size-full wp-image-1794\" alt=\"\" srcset=\"https:\/\/dwi.dk\/wp-content\/uploads\/2022\/06\/Utaet-vandledning-e1656513757890.jpg 773w, https:\/\/dwi.dk\/wp-content\/uploads\/2022\/06\/Utaet-vandledning-e1656513757890-225x300.jpg 225w, https:\/\/dwi.dk\/wp-content\/uploads\/2022\/06\/Utaet-vandledning-e1656513757890-768x1023.jpg 768w, https:\/\/dwi.dk\/wp-content\/uploads\/2022\/06\/Utaet-vandledning-e1656513757890-9x12.jpg 9w\" sizes=\"(max-width: 773px) 100vw, 773px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7d35ae51\" data-id=\"7d35ae51\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5230ecd2 elementor-widget elementor-widget-heading\" data-id=\"5230ecd2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Leak detection is analysis \u2013 not reaction <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-146ffed7 elementor-widget elementor-widget-text-editor\" data-id=\"146ffed7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Many people associate leak detection with acute ruptures. In practice, the work is much more systematic.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Effective leak detection is analytical work where operators plan investigations, analyze measurements, and verify suspected leaks.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">This includes, among other things:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><ul><li><span data-contrast=\"auto\"> plannednetworkreviews<\/span><\/li><li><span data-contrast=\"auto\"> analysis of night flow<\/span><\/li><li><span data-contrast=\"auto\"> assessment of acoustic signals<\/span><\/li><li><span data-contrast=\"auto\"> documentation of results.<\/span><\/li><\/ul><p><span data-contrast=\"auto\"><br \/>When the work is carried out in a structured manner, leaks are detected earlier and more accurately.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4ff519 elementor-widget elementor-widget-heading\" data-id=\"a4ff519\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why do leaks occur? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e06ab54 elementor-widget elementor-widget-text-editor\" data-id=\"e06ab54\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Leaks in water pipes can be caused by many factors:<\/p><p>\u2022 older pipe materials<\/p><p>\u2022 movements in the ground<\/p><p>\u2022 pressure variations in the system<\/p><p>\u2022 weakened joints<\/p><p>\u2022 load from traffic or construction.<\/p><p>Most leaks start small and develop gradually, which is why ongoing monitoring and planned leak detection are essential.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b2fe5 elementor-align-left elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"6b2fe5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/dwi.dk\/en\/raadgivning\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get advice<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1b4e152c elementor-section-content-middle elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"1b4e152c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6ce16c7f\" data-id=\"6ce16c7f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-50350e16 elementor-widget elementor-widget-heading\" data-id=\"50350e16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The main methods for leak detection <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51db310 elementor-widget elementor-widget-text-editor\" data-id=\"51db310\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p aria-level=\"2\"><span data-contrast=\"none\">Acoustic leak detection<\/span><span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Leaks create vibrations in pipes and soil. With listening equipment, operators can identify leak noise and determine where the signal is strongest.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><b><span data-contrast=\"auto\">The method is often used for:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/b><\/p><ul><li><span data-contrast=\"auto\"> branch pipes<\/span><\/li><li><span data-contrast=\"auto\"> distribution lines<\/span><\/li><li><span data-contrast=\"auto\"> minor leaks.<\/span>\u00a0<\/li><\/ul><p aria-level=\"2\"><span data-contrast=\"none\"><b><br \/>Correlation measurement<\/b><\/span><span data-ccp-props=\"{&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;335559738&quot;:160,&quot;335559739&quot;:80}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Correlators use sensors at two points on the pipe. By analyzing the difference in signal arrival time, the system can calculate the location of the leak.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">The method is precise and often used on longer distances.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p aria-level=\"2\"><strong>Trace gas\u00a0<\/strong><\/p><p><span data-contrast=\"auto\">For difficult leaks, tracer gas can be used. Gas is introduced into the pipe and seeps out at the leak, where it can be detected above ground.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">The method is useful for:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><ul><li><span data-contrast=\"auto\"> plastic pipes<\/span><\/li><li><span data-contrast=\"auto\"> deep-seated pipe<\/span><\/li><li><span data-contrast=\"auto\"> complex installations.<\/span><\/li><\/ul><p><strong><br \/>Data loggers and permanent monitoring\u00a0<\/strong><\/p><p><span data-contrast=\"auto\">More water supplies are using it today <a href=\"\/en\/loggere\/\">loggers<\/a> to monitor noise, pressure or flow in the pipe network.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">The logs can detect changes in the network and indicate new leaks, often before they become visible.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1584175c\" data-id=\"1584175c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-450ba6fd elementor-widget elementor-widget-image\" data-id=\"450ba6fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4843.png\" title=\"IMG_4843\" alt=\"IMG_4843\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-01a4ea6 elementor-section-height-min-height elementor-section-items-stretch elementor-section-content-middle elementor-section-boxed elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"01a4ea6\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-12100b7\" data-id=\"12100b7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2320642 elementor-widget elementor-widget-image\" data-id=\"2320642\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"1280\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4813.png\" class=\"attachment-full size-full wp-image-7094\" alt=\"\" srcset=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4813.png 960w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4813-225x300.png 225w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4813-768x1024.png 768w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4813-9x12.png 9w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3364ea4\" data-id=\"3364ea4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d4c8768 elementor-widget elementor-widget-heading\" data-id=\"d4c8768\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">From leak detection to system understanding <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a2841df elementor-widget elementor-widget-text-editor\" data-id=\"a2841df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Modern water utilities don&#039;t just work to find leaks.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">They are working to understand how the entire wiring network behaves.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">It requires:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><ul><li><span data-contrast=\"auto\"> measurements<\/span><\/li><li><span data-contrast=\"auto\"> analysis<\/span><\/li><li><span data-contrast=\"auto\"> experience from the field<\/span><\/li><\/ul><p><span data-contrast=\"auto\"><br \/>When these elements are combined, leak detection becomes much more effective.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd796e1 elementor-widget elementor-widget-heading\" data-id=\"fd796e1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Leak detection and reduction of water loss <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26a6b07 elementor-widget elementor-widget-text-editor\" data-id=\"26a6b07\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Leak detection is a central part of the work to reduce\u00a0<\/span><b><span data-contrast=\"auto\">NRW (Non-Revenue Water)<\/span><\/b><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">By systematically searching for leaks, water supplies can:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><ul><li><span data-contrast=\"auto\"> reduce water loss<\/span><\/li><li><span data-contrast=\"auto\"> prevent breakage<\/span><\/li><li><span data-contrast=\"auto\"> improve operational reliability<\/span><\/li><li><span data-contrast=\"auto\"> prioritize maintenance.<\/span><\/li><\/ul><p><span data-contrast=\"auto\"><br \/>Many European water supplies are currently working towards levels below\u00a0<\/span><b><span data-contrast=\"auto\">15 % North Rhine-Westphalia<\/span><\/b><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-768462e elementor-align-left elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"768462e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/dwi.dk\/en\/raadgivning\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get advice<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7e972c6 elementor-section-content-middle elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"7e972c6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9354cff\" data-id=\"9354cff\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-579e368 elementor-widget elementor-widget-heading\" data-id=\"579e368\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A typical leak detection process <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ff122f elementor-widget elementor-widget-text-editor\" data-id=\"3ff122f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Professional work on leaks often follows a structured process:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Mapping of wiring networks<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">\u2193<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Analysis of data and night consumption<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">\u2193<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Planned leak survey<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">\u2193<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Acoustic analysis<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">\u2193<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Leak confirmation<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">\u2193<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Repair and follow-up<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">When the process is repeated continuously, water loss is reduced over time.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-e843a40\" data-id=\"e843a40\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-41ea3b2 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"41ea3b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4931.png\" title=\"IMG_4931\" alt=\"IMG_4931\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4ff5012 elementor-section-height-min-height elementor-section-items-stretch elementor-section-content-middle elementor-section-boxed elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"4ff5012\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f89ec56\" data-id=\"f89ec56\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7ea83ab elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"7ea83ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4983-768x1024.png\" class=\"attachment-large size-large wp-image-7096\" alt=\"\" srcset=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4983-768x1024.png 768w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4983-225x300.png 225w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4983-9x12.png 9w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/06\/IMG_4983.png 960w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-74726a1\" data-id=\"74726a1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b57f027 elementor-widget elementor-widget-heading\" data-id=\"b57f027\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Field experience is essential <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dfafc2b elementor-widget elementor-widget-text-editor\" data-id=\"dfafc2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Leak detection cannot only be performed from a desktop.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Traffic noise, soil conditions, material types and installations affect the measurements. Therefore, technology is always combined with practical experience in the power grid.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">This is also why many organizations combine:<\/span><\/p><ul><li><span style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';\">equipment<\/span><\/li><li><span data-contrast=\"auto\"> training<\/span><\/li><li><span data-contrast=\"auto\"> advice<\/span><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8962b0b elementor-widget elementor-widget-heading\" data-id=\"8962b0b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The future of leak detection <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40d5e8b elementor-widget elementor-widget-text-editor\" data-id=\"40d5e8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Developments in leak detection are moving rapidly.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><p><span data-contrast=\"auto\">Today, many water utilities work with:<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/p><ul><li><span data-contrast=\"auto\">IoT sensors<\/span><\/li><li><a href=\"\/en\/dataloggere\/\"><span data-contrast=\"auto\"> data loggers<\/span><\/a><\/li><li><span data-contrast=\"auto\"> automated monitoring<\/span><\/li><li><span data-contrast=\"auto\"> machine learning and analysis.<\/span><\/li><\/ul><p><span data-contrast=\"auto\"><br \/>This means that leaks are increasingly being detected earlier and more accurately.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c56f49 elementor-align-left elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"6c56f49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/dwi.dk\/en\/raadgivning\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get advice<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-99df158 elementor-section-content-middle elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"99df158\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-282c363b\" data-id=\"282c363b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-43b75b56 elementor-widget elementor-widget-heading\" data-id=\"43b75b56\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Leak detection as part of a larger system <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba03c7c elementor-widget elementor-widget-text-editor\" data-id=\"ba03c7c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span data-contrast=\"auto\">Effective reduction of water loss requires several elements working together:<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p><ul><li><span data-contrast=\"auto\"> installations that work<\/span><\/li><li><span data-contrast=\"auto\"> access to valves and stopcocks<\/span><\/li><li><span data-contrast=\"auto\"> correct registration in GIS<\/span><\/li><li><span data-contrast=\"auto\"> measurements in the network<\/span><\/li><li><span data-contrast=\"auto\"> analysis of data<\/span><\/li><li><span data-contrast=\"auto\"> practical leak detection.<\/span><\/li><\/ul><p><span data-contrast=\"auto\"><br \/>When the entire chain works, work becomes much more efficient.<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c1d881b elementor-align-left elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"1c1d881b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/dwi.dk\/en\/kontakt\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get a price for leak detection<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-58b004b2\" data-id=\"58b004b2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-24f16f17 elementor-widget elementor-widget-image\" data-id=\"24f16f17\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"640\" src=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/03\/image6-rotated.jpeg\" class=\"attachment-large size-large wp-image-5408\" alt=\"\" srcset=\"https:\/\/dwi.dk\/wp-content\/uploads\/2026\/03\/image6-rotated.jpeg 480w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/03\/image6-225x300.jpeg 225w, https:\/\/dwi.dk\/wp-content\/uploads\/2026\/03\/image6-9x12.jpeg 9w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e704598 elementor-section-boxed elementor-section-height-default elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no\" data-id=\"e704598\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b86806e\" data-id=\"b86806e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8dd4156 elementor-widget elementor-widget-heading\" data-id=\"8dd4156\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Contact DWI<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-507292f elementor-widget elementor-widget-text-editor\" data-id=\"507292f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\">Contact us for competent advice, leak detection and pipe location for your waterworks or water supply. We also assist commercial customers and private households with professional solutions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f8f43cd e-grid e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"f8f43cd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0ce4fdb elementor-view-framed elementor-shape-circle elementor-widget elementor-widget-icon\" data-id=\"0ce4fdb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<i aria-hidden=\"true\" class=\"fas fa-phone\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f3c3f3 elementor-view-framed elementor-shape-circle elementor-widget elementor-widget-icon\" data-id=\"6f3c3f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<i aria-hidden=\"true\" class=\"fas fa-mail-bulk\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-725bd81 elementor-widget elementor-widget-text-editor\" data-id=\"725bd81\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p><p><strong>Telephone<\/strong><\/p><p><a href=\"tel:+4531723131\">+45 31 72 31 31<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbe79d7 elementor-widget elementor-widget-text-editor\" data-id=\"cbe79d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u00a0<\/strong><\/p><p><strong>Email<\/strong><\/p><p><a href=\"mailto:info@dwi.dk\">info@dwi.dk<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Leak detection Guide to leak detection in water supplies We help water supplies reduce their water losses and increase operational reliability. Below we have created a short guide to effective leak detection in the water distribution network. Contact us How do you find a leak in a water supply network \u2013 and how do you work systematically to reduce water losses? Leak detection is a central discipline in modern water supply. Even small leaks can lead to large losses of water, energy and resources over time. That is why many utilities today work systematically with leak detection, monitoring and analysis. This guide provides an overview of leak detection methods, how the work is carried out in practice and how it is part of an overall strategy for reducing water losses (NRW). We combine technical expertise, advanced methods and many years of experience with leak detection on complex supply systems \u2013 and we always work with a focus on precise troubleshooting and a qualified decision-making basis. How do you find a water leak? Most leaks in a water supply network are detected through a combination of analysis, measurements and acoustic equipment. A typical process looks like this: Analysis of night consumption and water balance Delimitation of zone or pipe length Acoustic listening for leak noise Correlation measurement between two points Confirmation and precise localization. In modern water supplies, the process is often supplemented with data loggers and analysis tools that can indicate leaks earlier. What is leak detection? Leak detection is the process where hidden leaks in a water supply network are located before they develop into larger breaks. In many cases, leaks are not visible on the surface. Water can disappear into the ground for a long time without obvious signs. Therefore, technical methods are used to: identify leak noise analyze pressure and flow monitor changes in the pipe network locate the position of the leak The aim is to detect leaks early and reduce water loss. Leak detection is analysis \u2013 not reaction Many people associate leak detection with acute breaks. In practice, the work is much more systematic. Effective leak detection is analytical work where operators plan investigations, analyze measurements and verify suspected leaks. This includes: planned network reviews analysis of night flow assessment of acoustic signals documentation of results. When the work is carried out in a structured manner, leaks are detected earlier and more accurately. Why do leaks occur? Leaks in water pipes can be caused by many factors: \u2022 older pipe materials \u2022 movements in the ground \u2022 pressure variations in the system \u2022 weakened joints \u2022 stress from traffic or construction. Most leaks start small and develop gradually. Therefore, continuous monitoring and planned leak detection are essential. Get advice The most important methods for leak detection Acoustic leak detection Leaks create vibrations in pipes and soil. With listening equipment, operators can identify leak noise and determine where the signal is strongest. The method is often used on: branch pipes distribution pipes smaller leaks. Correlation measurement Correlators use sensors at two points on the pipe. By analyzing the difference in the signal arrival time, the system can calculate the location of the leak. The method is precise and is often used on longer distances. Tracer gas Tracer gas can be used for difficult leaks. Gas is introduced into the pipe and seeps out at the leak, where it can be detected above ground. The method is useful for: plastic pipes deep pipes complex installations. Data loggers and permanent monitoring Today, several water utilities use loggers to monitor noise, pressure or flow in the pipe network. The loggers can record changes in the network and indicate new leaks, often before they become visible. From leak detection to system understanding Modern water utilities do not only work to find leaks. They work to understand how the entire pipe network behaves. This requires: measurements analysis experience from the field When these elements are combined, leak detection becomes much more effective. Leak detection and reduction of water loss Leak detection is a central part of the work to reduce NRW (Non-Revenue Water). By systematically searching for leaks, water utilities can: reduce water loss prevent breakages improve operational reliability prioritize maintenance. Many European water utilities are currently working towards levels below 15 % NRW. Get advice A typical leak detection process Professional leak detection work often follows a structured process: Mapping of the pipeline network \u2193 Analysis of data and night consumption \u2193 Planned leak survey \u2193 Acoustic analysis \u2193 Confirmation of leak \u2193 Repair and follow-up When the process is repeated continuously, water loss is reduced over time. Experience from the field is crucial Leak detection cannot only be carried out from a desk. Traffic noise, soil conditions, material types and installations affect the measurements. That is why technology is always combined with practical experience in the pipeline network. This is also why many organizations combine: equipment training advice Leak detection of the future Developments in leak detection are moving quickly. Today, many water utilities work with: IoT sensors data loggers automated monitoring machine learning and analysis. This means that leaks are increasingly detected earlier and more accurately. Get advice Leak detection as part of a larger system Effective reduction of water loss requires several elements that work together: installations that work access to valves and stopcocks correct registration in GIS measurements in the network analysis of data practical leak detection. When the entire chain works, the work becomes much more efficient. Get a price for leak detection Contact DWI Contact us for competent advice, leak detection and pipe location for your waterworks or water supply. We also assist business customers and private households with professional solutions. Phone +45 31 72 31 31 Email info@dwi.dk<\/p>","protected":false},"author":9,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","footnotes":""},"class_list":["post-5320","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Guide til l\u00e6kages\u00f8gning | Metoder og reduktion af vandtab<\/title>\n<meta name=\"description\" content=\"F\u00e5 en komplet guide til l\u00e6kages\u00f8gning i vandforsyninger. 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