{"id":18216,"date":"2025-04-22T11:08:46","date_gmt":"2025-04-22T09:08:46","guid":{"rendered":"https:\/\/leaderservices.be\/blog\/how-do-i-connect-a-washing-machine-to-an-existing-drain-2\/"},"modified":"2025-05-26T17:33:18","modified_gmt":"2025-05-26T15:33:18","slug":"how-do-i-connect-a-washing-machine-to-an-existing-drain-2","status":"publish","type":"post","link":"https:\/\/leaderservices.be\/en\/blog\/how-do-i-connect-a-washing-machine-to-an-existing-drain-2\/","title":{"rendered":"How do I connect a washing machine to an existing drain?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Prerequisites for compliant installation<\/h2>\n\n<p class=\"wp-block-paragraph\">Before connecting your washing machine, there are several things to check:<\/p>\n\n<ol class=\"wp-block-list\">\n<li>Evacuation type available :\n<ul class=\"wp-block-list\">\n<li>Specific downpipe<\/li>\n\n\n\n<li>Sink trap with machine inlet<\/li>\n\n\n\n<li>Dedicated wall drainage<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Technical specifications :\n<ul class=\"wp-block-list\">\n<li>Pipe diameter (minimum 32 mm)<\/li>\n\n\n\n<li>Maximum lift height (1m max)<\/li>\n\n\n\n<li>Distance from device (max. 1.5m recommended)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Standards to be met :\n<ul class=\"wp-block-list\">\n<li>Minimum 1% slope<\/li>\n\n\n\n<li>Backflow protection<\/li>\n\n\n\n<li>Adequate circuit ventilation<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\">Possible connection solutions<\/h2>\n\n<h3 class=\"wp-block-heading\">Option 1: Direct connection to a downspout<\/h3>\n\n<ul class=\"wp-block-list\">\n<li>Use of a certified connection sleeve<\/li>\n\n\n\n<li>Installation of a non-return valve<\/li>\n\n\n\n<li>Checking seal tightness<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">Option 2: Sink trap connection<\/h3>\n\n<ul class=\"wp-block-list\">\n<li>Choosing a double inlet siphon<\/li>\n\n\n\n<li>Compliance with minimum height (60 cm above ground)<\/li>\n\n\n\n<li>Installing a water trap<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">Option 3: Connection to wall drainage<\/h3>\n\n<ul class=\"wp-block-list\">\n<li>Check outlet diameter<\/li>\n\n\n\n<li>Installation of a rigid pipe (less than 1m long)<\/li>\n\n\n\n<li>Fixing without 90\u00b0 elbow<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Step-by-step installation procedure<\/h2>\n\n<ol class=\"wp-block-list\">\n<li>Material preparation :\n<ul class=\"wp-block-list\">\n<li>Suitable drain pipe (diameter 32\/40 mm)<\/li>\n\n\n\n<li>Mounting clamps<\/li>\n\n\n\n<li>Sanitary sealant<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>System assembly :\n<ul class=\"wp-block-list\">\n<li>Pipe positioning without retention zone<\/li>\n\n\n\n<li>Creation of a continuous slope (1 cm\/m minimum)<\/li>\n\n\n\n<li>Fixing every 50 cm<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Validation tests :\n<ul class=\"wp-block-list\">\n<li>Vacuum flow test<\/li>\n\n\n\n<li>Controlling potential leaks<\/li>\n\n\n\n<li>Sound level check<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\">Common mistakes to avoid<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>Use of pipes that are too long (&gt;1.5m)<\/li>\n\n\n\n<li>Unsuitable siphon connection<\/li>\n\n\n\n<li>Neglect of minimum height<\/li>\n\n\n\n<li>Non-return valve forgotten<\/li>\n\n\n\n<li>Insufficient or inverted slope<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Preventive maintenance<\/h2>\n\n<p class=\"wp-block-paragraph\">To guarantee the longevity of your system:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Annual pipe cleaning<\/li>\n\n\n\n<li>Checking seals<\/li>\n\n\n\n<li>Checking the check valve<\/li>\n\n\n\n<li>Fastener inspection<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Calling in a professional<\/h2>\n\n<p class=\"wp-block-paragraph\">Our plumbing service guarantees :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Precise diagnosis of your installation<\/li>\n\n\n\n<li>Choosing the optimum solution<\/li>\n\n\n\n<li>Standardized, secure installation<\/li>\n\n\n\n<li>Complete test before commissioning<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/leaderservices.be\/en\/contact\/\">Request an intervention<br\/><\/a><a href=\"https:\/\/leaderservices.be\/devis\/\">Get a personalized quote<\/a><\/p>\n\n<p class=\"wp-block-paragraph\">If you have any questions about connecting your washing machine or would like to benefit from a professional installation, our qualified technicians are at your disposal. See also our <a href=\"https:\/\/leaderservices.be\/en\/plumbing\/\">plumbing services<\/a> page for more information. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Prerequisites for compliant installation Before connecting your washing machine, there are several things to check: Possible connection solutions Option 1: Direct connection to a downspout Option 2: Sink trap connection Option 3: Connection to wall drainage Step-by-step installation procedure Common mistakes to avoid Preventive maintenance To guarantee the longevity of your system: Calling in a &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"How do I connect a washing machine to an existing drain?\" class=\"read-more button\" href=\"https:\/\/leaderservices.be\/en\/blog\/how-do-i-connect-a-washing-machine-to-an-existing-drain-2\/#more-18216\" aria-label=\"Read more about How do I connect a washing machine to an existing drain?\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":18188,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[229,232],"class_list":["post-18216","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee","tag-blog_plomberie","tag-blog_plomberie_installation"],"acf":[],"_links":{"self":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts\/18216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/comments?post=18216"}],"version-history":[{"count":1,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts\/18216\/revisions"}],"predecessor-version":[{"id":18217,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/posts\/18216\/revisions\/18217"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/media\/18188"}],"wp:attachment":[{"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/media?parent=18216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/categories?post=18216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/leaderservices.be\/en\/wp-json\/wp\/v2\/tags?post=18216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}