{"id":3233,"date":"2023-11-07T10:47:27","date_gmt":"2023-11-07T02:47:27","guid":{"rendered":"https:\/\/en.lesso.com\/blogs\/?p=3233"},"modified":"2023-12-29T15:50:31","modified_gmt":"2023-12-29T07:50:31","slug":"siphonic-drainage-systems","status":"publish","type":"post","link":"https:\/\/en.lesso.com\/blogs\/siphonic-drainage-systems\/","title":{"rendered":"What Are Siphonic Drainage Systems?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3233\" class=\"elementor elementor-3233\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d3a143e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d3a143e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-614fbf9\" data-id=\"614fbf9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2ebc170 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"2ebc170\" data-element_type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\"><i class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\"><i class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f7623a elementor-widget elementor-widget-heading\" data-id=\"1f7623a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">I. Introduction to Siphonic Drainage Systems<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad0c1e3 elementor-widget elementor-widget-text-editor\" data-id=\"ad0c1e3\" data-element_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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Many of us have never heard of <a href=\"https:\/\/en.lesso.com\/product\/drainage-sewerage\/siphon-type-roof-rainwater-drain-system-pipe.html\"><span style=\"text-decoration: underline;\"><strong>siphonic drain systems<\/strong><\/span><\/a>, but as of 2023, they&#8217;ve been around for 55 years. Two Finnish engineers designed the first system in 1968. It was a radical concept then, this idea of pulling only water off of the roof and filling the pipes to their full extent.<\/p><p>In reality, this system is much more efficient than traditional downspouts because the water is drawn instead of relying solely on gravity. That means that it will clear the water off of the roofs in question much more quickly than standard drains will while using smaller pipes.<\/p>\t\t\t\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-d79596c elementor-widget elementor-widget-heading\" data-id=\"d79596c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">II. How Do Siphonic Drainage Systems Work?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-424ae37 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"424ae37\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d254b97\" data-id=\"d254b97\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b959ac5 elementor-widget elementor-widget-text-editor\" data-id=\"b959ac5\" data-element_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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Siphonic drains use a rainwater drainage system that is powered by a vacuum. The design is ingenious because it needs no outside power to function. The idea is for one system to connect to several water collection zones. Unlike the aforementioned standard drains that rely only on gravity, siphonic drainage systems use gravity as a tool to jumpstart the vacuum that draws the water off of the roof and into the drains.<\/p><p>A properly maintained antivortex plate will keep leaves and other detritus out of the system. That same plate also breaks up the Coriolis effect, which allows the water to push itself straight down into the antivortex plate, creating the vacuum that sucks the water off of the roof faster than gravity alone. In many cases, siphonic drainage systems operate as regular drains when the rainfall doesn&#8217;t reach a certain level, which is generally about 2 inches per hour.<\/p>\t\t\t\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-9230c15 elementor-widget elementor-widget-heading\" data-id=\"9230c15\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">III. Advantages of Siphonic Drainage Systems<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-4d766bd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4d766bd\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3b64fc8\" data-id=\"3b64fc8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-067db4e elementor-widget elementor-widget-text-editor\" data-id=\"067db4e\" data-element_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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Because of the vacuum created by the antivortex plate, the sucking power produced eliminates the need for pitched pipes and\/or gradients that traditional systems require. As an example, with standard drains, a rainfall rate of 4.3 inches per hour on a 7,000-square-foot roof would necessitate a 5-inch downpipe and a 6-inch horizontal pipe sloped at 1\/4 inch per foot.<\/p><p>Conversely, a single siphonic pipe would only need to be 4 inches wide in the same situation. No horizontal pitched pipe would be necessary.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-1526a11 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1526a11\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b402d47\" data-id=\"b402d47\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-069f6d4 elementor-widget elementor-widget-text-editor\" data-id=\"069f6d4\" data-element_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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Also, because they can operate on completely flat roofs common on commercial buildings when installed in combination with each other, they are useful on very large roofs. Such roofs would include those in shopping centers, big storage warehouses, and apartment or condominium complexes that are wide rather than tall. In between periods of regular maintenance, they&#8217;re also self-sustaining.<\/p><p>The No. 1 benefit of these systems is that they cost half as much as traditional drains. They&#8217;re both more flexible in design and easier to install, so most of the savings are in labor costs. The chief reason for these advantages is that a single pipe will suffice, and the pipe can be flat.<\/p>\t\t\t\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-2b02799 elementor-aspect-ratio-169 elementor-widget elementor-widget-video\" data-id=\"2b02799\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=qq69_xWImAw&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;,&quot;aspect_ratio&quot;:&quot;169&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-fit-aspect-ratio elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d2fd54d elementor-widget elementor-widget-heading\" data-id=\"d2fd54d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">IV. Siphonic System Design and Installation Considerations<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-4177072 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4177072\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-289ca75\" data-id=\"289ca75\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cbb6e34 elementor-widget elementor-widget-text-editor\" data-id=\"cbb6e34\" data-element_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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>The first thing to remember is that these systems are not for your home unless you have a palatial mansion with a roof of 10,000 square feet or more. They&#8217;re for commercial and industrial buildings. Second, while it is true that siphonic systems only need one pipe to function in any one area of the roof, you still have to have enough pipes to handle the maximum flow that can occur.<\/p><p>The bigger the roof, the more systems you will need to drain the roof effectively. Remember, the individual systems will all drain into a larger central system that will either store the water for some purpose or shunt it away to safety, generally to a sewer or, if allowed by law, directly into a river or lake.<\/p><p>The different drains of the full roof system must be aligned so that the pipes can be constructed at right angles to one another. If they&#8217;re out of alignment, then you would need to create pitches for the water to flow correctly, which defeats the purpose of the siphonic <a href=\"https:\/\/en.lesso.com\/product\/drainage-sewerage\/\"><u><b>drainage system<\/b><\/u><\/a> in the first place. Once aligned, the full advantage of such a drainage system becomes apparent.<\/p><p>The ability to lay the pipes flat between different systems means that you can run them through the ceiling instead of needing to do time-consuming and expensive digging, which might include excavating under the slab as well. Remember to use pipes that can handle water that flows at 100 times the rate of gravity.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-dc66d67 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dc66d67\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0584b91\" data-id=\"0584b91\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9ec86a8 elementor-widget elementor-widget-image\" data-id=\"9ec86a8\" data-element_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<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img width=\"800\" height=\"500\" src=\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/08\/lesso-siphonic-rainwater-drainage-pipes.jpg\" class=\"attachment-large size-large\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/08\/lesso-siphonic-rainwater-drainage-pipes.jpg 800w, https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/08\/lesso-siphonic-rainwater-drainage-pipes-300x188.jpg 300w, https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/08\/lesso-siphonic-rainwater-drainage-pipes-768x480.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\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-d815ac4 elementor-widget elementor-widget-heading\" data-id=\"d815ac4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">V. Conclusion<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-2b4ece4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2b4ece4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2f353fa\" data-id=\"2f353fa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2090484 elementor-widget elementor-widget-text-editor\" data-id=\"2090484\" data-element_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<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p><a href=\"https:\/\/en.lesso.com\/\"><span style=\"text-decoration: underline;\"><strong>At LESSO<\/strong><\/span><\/a>, we know what&#8217;s what regarding siphonic drainage systems. We&#8217;ll work with you whether you&#8217;re installing a new set of roof drainage pipes in an old building or building new. Either way, we&#8217;ve got the experience and know-how to do the job right the first time. <a href=\"https:\/\/en.lesso.com\/contact\/\"><span style=\"text-decoration: underline;\"><strong>Contact us today<\/strong><\/span><\/a> to set up an appointment to get things started.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-1779a745 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1779a745\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2bbed8b2\" data-id=\"2bbed8b2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-11f28985 elementor-widget elementor-widget-heading\" data-id=\"11f28985\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">FAQs about Siphonic Systems Suitable<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36d3019c elementor-widget elementor-widget-accordion\" data-id=\"36d3019c\" data-element_type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-accordion\" role=\"tablist\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9191\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"tab\" aria-controls=\"elementor-tab-content-9191\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" href=\"\">How Does a Siphonic System Differ in Pipe Diameter Compared to Traditional Systems?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9191\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9191\"><p>Siphonic systems typically have a smaller pipe diameter yet achieve greater flow compared to traditional gravity flow systems of the same diameter.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9192\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"tab\" aria-controls=\"elementor-tab-content-9192\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" href=\"\">Can Siphonic Systems Be Installed Without Slope?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9192\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9192\">Yes, siphonic systems do not require a slope for horizontal pipe installation, making them more convenient for integrating with other building systems.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9193\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"tab\" aria-controls=\"elementor-tab-content-9193\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" href=\"\">Do Siphonic Drainage Systems Require Frequent Cleaning?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9193\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9193\">No, due to the rapid flow and self-cleaning ability of siphonic systems, additional cleanouts are generally unnecessary.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-9194\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"tab\" aria-controls=\"elementor-tab-content-9194\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" href=\"\">Are Siphonic Systems Suitable for All Types of Roofs?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-9194\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-9194\">LESSO\u2019s siphonic rainwater heads are adaptable for both concrete and steel-structure roofs, offering flexibility in system design and installation.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How Does a Siphonic System Differ in Pipe Diameter Compared to Traditional Systems?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>Siphonic systems typically have a smaller pipe diameter yet achieve greater flow compared to traditional gravity flow systems of the same diameter.<\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"Can Siphonic Systems Be Installed Without Slope?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, siphonic systems do not require a slope for horizontal pipe installation, making them more convenient for integrating with other building systems.\"}},{\"@type\":\"Question\",\"name\":\"Do Siphonic Drainage Systems Require Frequent Cleaning?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, due to the rapid flow and self-cleaning ability of siphonic systems, additional cleanouts are generally unnecessary.\"}},{\"@type\":\"Question\",\"name\":\"Are Siphonic Systems Suitable for All Types of Roofs?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"LESSO\\u2019s siphonic rainwater heads are adaptable for both concrete and steel-structure roofs, offering flexibility in system design and installation.\"}}]}<\/script>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\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-c7499d7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c7499d7\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3dc34c90\" data-id=\"3dc34c90\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-64ad4ef7 elementor-widget elementor-widget-heading\" data-id=\"64ad4ef7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Recommend Reading<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e91c6a2 elementor-grid-2 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-posts--thumbnail-top elementor-posts--show-avatar elementor-card-shadow-yes elementor-posts__hover-gradient elementor-widget elementor-widget-posts\" data-id=\"e91c6a2\" data-element_type=\"widget\" data-settings=\"{&quot;cards_columns&quot;:&quot;2&quot;,&quot;cards_columns_tablet&quot;:&quot;2&quot;,&quot;cards_columns_mobile&quot;:&quot;1&quot;,&quot;cards_row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:35,&quot;sizes&quot;:[]},&quot;cards_row_gap_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;cards_row_gap_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"posts.cards\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-posts-container elementor-posts elementor-posts--skin-cards elementor-grid\">\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-1888 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge tag-pipe\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/en.lesso.com\/blogs\/difference-between-pvc-pipe-pvc-conduit\/\" ><div class=\"elementor-post__thumbnail\"><img width=\"300\" height=\"192\" src=\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2022\/03\/pvc-pipe-pvc-conduit-300x192.jpg\" class=\"attachment-medium size-medium\" alt=\"Difference Between PVC Pipe and PVC Conduit\" loading=\"lazy\" srcset=\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2022\/03\/pvc-pipe-pvc-conduit-300x192.jpg 300w, https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2022\/03\/pvc-pipe-pvc-conduit-1024x656.jpg 1024w, https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2022\/03\/pvc-pipe-pvc-conduit-768x492.jpg 768w, https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2022\/03\/pvc-pipe-pvc-conduit.jpg 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div><\/a>\n\t\t\t\t<div class=\"elementor-post__badge\">Knowledge<\/div>\n\t\t\t\t<div class=\"elementor-post__avatar\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h4 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/en.lesso.com\/blogs\/difference-between-pvc-pipe-pvc-conduit\/\" >\n\t\t\t\tWhat&#8217;s the Difference Between PVC Pipe and PVC Conduit\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"elementor-post__excerpt\">\n\t\t\t<p>Table of Contents PVC or Polyvinyl Chloride pipes use vinyl and plastic materials. We use these pipes in plumbing systems. If you do not want<\/p>\n\t\t<\/div>\n\t\t\t\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/en.lesso.com\/blogs\/difference-between-pvc-pipe-pvc-conduit\/\" >\n\t\t\t\tRead More \u00bb\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-1145 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge tag-pvc-pipe-fitting\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/en.lesso.com\/blogs\/pvc-pipe-fitting-types\/\" ><div class=\"elementor-post__thumbnail\"><img width=\"300\" height=\"188\" src=\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/07\/different-types-of-pvc-fittings-300x188.jpg\" class=\"attachment-medium size-medium\" alt=\"Different Types of PVC Fittings\" loading=\"lazy\" srcset=\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/07\/different-types-of-pvc-fittings-300x188.jpg 300w, https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/07\/different-types-of-pvc-fittings-768x480.jpg 768w, https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2021\/07\/different-types-of-pvc-fittings.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div><\/a>\n\t\t\t\t<div class=\"elementor-post__badge\">Knowledge<\/div>\n\t\t\t\t<div class=\"elementor-post__avatar\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h4 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/en.lesso.com\/blogs\/pvc-pipe-fitting-types\/\" >\n\t\t\t\tWhat are the Different Types of PVC Fittings?\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"elementor-post__excerpt\">\n\t\t\t<p>Table of Contents Pipe fittings connect the pipes together and allow you to customize your plumbing to suit your needs. There are lots of different<\/p>\n\t\t<\/div>\n\t\t\t\t\t<a class=\"elementor-post__read-more\" href=\"https:\/\/en.lesso.com\/blogs\/pvc-pipe-fitting-types\/\" >\n\t\t\t\tRead More \u00bb\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\n\n\t\t\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Table of Contents I. Introduction to Siphonic Drainage Systems Many of us have never heard of siphonic drain systems, but as of 2023, they&#8217;ve been around for 55 years. Two Finnish engineers designed the first system in 1968. It was a radical concept then, this idea of pulling only water off of the roof and &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/en.lesso.com\/blogs\/pvc-pipe-fitting-types\/\"> <span class=\"screen-reader-text\">What are the Different Types of PVC Fittings?<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":3234,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"","site-content-layout":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[11],"tags":[28],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Are Siphonic Drainage Systems?<\/title>\n<meta name=\"description\" content=\"Explore efficient and sustainable Siphonic Drainage Systems. Learn how this innovative technology enhances water management. Discover more at LESSO.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/en.lesso.com\/blogs\/siphonic-drainage-systems\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Are Siphonic Drainage Systems?\" \/>\n<meta property=\"og:description\" content=\"Explore efficient and sustainable Siphonic Drainage Systems. Learn how this innovative technology enhances water management. Discover more at LESSO.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/en.lesso.com\/blogs\/siphonic-drainage-systems\/\" \/>\n<meta property=\"og:site_name\" content=\"LESSO Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/lessogroup\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-07T02:47:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-29T07:50:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2023\/12\/siphonic-drainage-systems.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1116\" \/>\n\t<meta property=\"og:image:height\" content=\"625\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"LESSO\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@LessoGroup\" \/>\n<meta name=\"twitter:site\" content=\"@LessoGroup\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/en.lesso.com\/blogs\/#organization\",\"name\":\"LESSO\",\"url\":\"https:\/\/en.lesso.com\/blogs\/\",\"sameAs\":[\"https:\/\/www.linkedin.com\/company\/lesso\/\",\"https:\/\/www.youtube.com\/channel\/UCRhJ2Ax49Ycho7WIv-yG9Cw\",\"https:\/\/www.facebook.com\/lessogroup\/\",\"https:\/\/twitter.com\/LessoGroup\"],\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/en.lesso.com\/blogs\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2020\/08\/logo.png\",\"contentUrl\":\"https:\/\/en.lesso.com\/blogs\/wp-content\/uploads\/2020\/08\/logo.png\",\"width\":126,\"height\":49,\"caption\":\"LESSO\"},\"image\":{\"@id\":\"https:\/\/en.lesso.com\/blogs\/#\/schema\/logo\/image\/\"}},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/en.lesso.com\/blogs\/#website\",\"url\":\"https:\/\/en.lesso.com\/blogs\/\",\"name\":\"LESSO Blog\",\"description\":\"LESSO\",\"publisher\":{\"@id\":\"https:\/\/en.lesso.com\/blogs\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/en.lesso.com\/blogs\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/en.lesso.com\/blogs\/siphonic-drainage-systems\/\",\"url\":\"https:\/\/en.lesso.com\/blogs\/siphonic-drainage-systems\/\",\"name\":\"What Are Siphonic Drainage Systems?\",\"isPartOf\":{\"@id\":\"https:\/\/en.lesso.com\/blogs\/#website\"},\"datePublished\":\"2023-11-07T02:47:27+00:00\",\"dateModified\":\"2023-12-29T07:50:31+00:00\",\"description\":\"Explore efficient and sustainable Siphonic Drainage Systems. 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