{"id":1585,"date":"2025-11-01T20:19:47","date_gmt":"2025-11-01T20:19:47","guid":{"rendered":"https:\/\/thermoflowpro.com\/thermo\/?page_id=1585"},"modified":"2026-03-01T20:08:18","modified_gmt":"2026-03-01T20:08:18","slug":"drainage-system-calculator","status":"publish","type":"page","link":"https:\/\/thermoflowpro.com\/thermo\/drainage-system-calculator\/","title":{"rendered":"Drainage System Calculator"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1585\" class=\"elementor elementor-1585\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1723a18 e-flex e-con-boxed e-con e-parent\" data-id=\"1723a18\" 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-143dfe7 elementor-widget elementor-widget-heading\" data-id=\"143dfe7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><img decoding=\"async\" class=\"alignnone size-medium wp-image-2175\" src=\"https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2026\/02\/logo-1-300x300.png\" alt=\"\" width=\"50\" height=\"300\" \/>\nDrainage System Calculator<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fe0247a e-flex e-con-boxed e-con e-parent\" data-id=\"fe0247a\" 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-7a645f2 elementor-widget elementor-widget-text-editor\" data-id=\"7a645f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>A professional desktop tool for plumbing and drainage design.<br data-start=\"105\" data-end=\"108\" \/>Calculates DFU loads, sewer and vent sizes, and roof storm drainage \u2014 all in one clean, intuitive interface.<br data-start=\"216\" data-end=\"219\" \/>Includes PDF reporting and full project save\/load support for MEP engineers.<\/p><p><span style=\"font-weight: bold;\">Version<\/span>\u00a0: 1.0.2<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c85a67f e-flex e-con-boxed e-con e-parent\" data-id=\"c85a67f\" 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-fa45d48 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"fa45d48\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/thermoflowpro.com\/downloads\/thermo\/apps\/Drainage_system_calculator_1.0.2.exe\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-download\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M216 0h80c13.3 0 24 10.7 24 24v168h87.7c17.8 0 26.7 21.5 14.1 34.1L269.7 378.3c-7.5 7.5-19.8 7.5-27.3 0L90.1 226.1c-12.6-12.6-3.7-34.1 14.1-34.1H192V24c0-13.3 10.7-24 24-24zm296 376v112c0 13.3-10.7 24-24 24H24c-13.3 0-24-10.7-24-24V376c0-13.3 10.7-24 24-24h146.7l49 49c20.1 20.1 52.5 20.1 72.6 0l49-49H488c13.3 0 24 10.7 24 24zm-124 88c0-11-9-20-20-20s-20 9-20 20 9 20 20 20 20-9 20-20zm64 0c0-11-9-20-20-20s-20 9-20 20 9 20 20 20 20-9 20-20z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Download<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6a6a1c3 e-flex e-con-boxed e-con e-parent\" data-id=\"6a6a1c3\" 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-354af13 elementor-widget elementor-widget-image\" data-id=\"354af13\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"674\" src=\"https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/02-1024x674.png\" class=\"attachment-large size-large wp-image-1595\" alt=\"\" srcset=\"https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/02-1024x674.png 1024w, https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/02-300x197.png 300w, https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/02-768x505.png 768w, https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/02.png 1096w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2b54aa elementor-widget elementor-widget-image\" data-id=\"b2b54aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"629\" src=\"https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/01-1024x629.png\" class=\"attachment-large size-large wp-image-1598\" alt=\"\" srcset=\"https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/01-1024x629.png 1024w, https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/01-300x184.png 300w, https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/01-768x472.png 768w, https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/01.png 1185w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3667c23 elementor-widget elementor-widget-image\" data-id=\"3667c23\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"755\" height=\"627\" src=\"https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/03.png\" class=\"attachment-large size-large wp-image-1599\" alt=\"\" srcset=\"https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/03.png 755w, https:\/\/thermoflowpro.com\/thermo\/wp-content\/uploads\/2025\/11\/03-300x249.png 300w\" sizes=\"(max-width: 755px) 100vw, 755px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3e72eb8 e-flex e-con-boxed e-con e-parent\" data-id=\"3e72eb8\" 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-ca0f423 elementor-widget elementor-widget-heading\" data-id=\"ca0f423\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Features:<\/h3>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c095711 e-flex e-con-boxed e-con e-parent\" data-id=\"c095711\" 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-f98cfa7 elementor-widget elementor-widget-text-editor\" data-id=\"f98cfa7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"2269\" data-end=\"2288\">\ud83d\udca7 DFU Calculator<br>\ud83e\uddf1 Sewer Sizing<br>\ud83c\udf27\ufe0f Roof Storm Sizing<br>\ud83c\udf2c\ufe0f Vent Pipe Sizing<br>\ud83e\uddee Auto PDF Reports<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-77c408c e-flex e-con-boxed e-con e-parent\" data-id=\"77c408c\" 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-f3fb8f5 elementor-widget elementor-widget-heading\" data-id=\"f3fb8f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Why ThermoFlow Pro?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b7a8a47 e-flex e-con-boxed e-con e-parent\" data-id=\"b7a8a47\" 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-07b0a4c elementor-widget elementor-widget-text-editor\" data-id=\"07b0a4c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul data-start=\"2433\" data-end=\"2546\"><li data-start=\"2433\" data-end=\"2480\"><p data-start=\"2435\" data-end=\"2480\">Reliable Calculations (Based on IPC &amp; ASPE)<\/p><\/li><li data-start=\"2484\" data-end=\"2515\"><p data-start=\"2486\" data-end=\"2515\">Smart, Simple, Intuitive UI<\/p><\/li><li data-start=\"2519\" data-end=\"2546\"><p data-start=\"2521\" data-end=\"2546\">Ready for Real Projects<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-18a82d1 e-flex e-con-boxed e-con e-parent\" data-id=\"18a82d1\" 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-f4550cf elementor-widget elementor-widget-heading\" data-id=\"f4550cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Reference<\/h3>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a192c38 e-flex e-con-boxed e-con e-parent\" data-id=\"a192c38\" 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-b1dd234 elementor-widget elementor-widget-text-editor\" data-id=\"b1dd234\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n \t<li><a href=\"https:\/\/thermoflowpro.com\/downloads\/thermo\/pdf\/dr_01.pdf\" target=\"_blank\" rel=\"noopener\">Drainage System Sizing, IPC 2015<\/a><\/li>\n \t<li><a href=\"https:\/\/thermoflowpro.com\/downloads\/thermo\/pdf\/dr_02.pdf\" target=\"_blank\" rel=\"noopener\">Sizing of Storm Drain, IPC 2021<\/a><\/li>\n \t<li><a href=\"https:\/\/thermoflowpro.com\/downloads\/thermo\/pdf\/dr_03.pdf\" target=\"_blank\" rel=\"noopener\">Vent Pipe Sizing, IPC 2021<\/a><\/li>\n\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a9c0e59 e-flex e-con-boxed e-con e-parent\" data-id=\"a9c0e59\" 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-04b0647 elementor-widget elementor-widget-text-editor\" data-id=\"04b0647\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/thermoflowpro.com\/thermo\/customized-apps\/\">Customize Application<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Drainage System Calculator A professional desktop tool for plumbing and drainage design.Calculates DFU loads, sewer and vent sizes, and roof [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"left-sidebar","site-content-layout":"","ast-site-content-layout":"normal-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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