[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-657898-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-657898-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","vertical-wet-venting-requirements-plumbing-guidelines","Vertical Wet Venting Requirements - Plumbing Guidelines","","This technical document outlines the regulatory requirements and installation standards for vertical wet venting systems in plumbing applications. It specifies criteria for vertical drain discharge, including limitations to trap arms of one or two fixture units (DFU) and restrictions on developed length, which must not exceed six feet. The document details minimum pipe sizing requirements, emphasizing that wet-vented sections must be at least one pipe size larger than the minimum waste size of the upper fixture or the aggregate of served fixtures, with a absolute minimum diameter of two inches. These standards comply with M.R. Chapter 4714, Section 908.1, providing essential safety and operational parameters for professional plumbing contractors. The material includes illustrative diagrams showing various fixture configurations, such as lavatories, kitchen sinks, laundry tubs, and standpipe receptors, to clarify standard wet-venting layouts and pipe size specifications for diverse residential or private-use plumbing installations.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/vertical-wet-venting-requirements-plumbing-guidelines/657898/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/vertical-wet-venting-requirements-plumbing-guidelines/657898.png","ImageObject",300,407,{"name":42,"@type":43},"Pentious","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-10-26",true,{"@type":52,"interactionType":53,"userInteractionCount":30},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What is the maximum developed length permitted for a wet vent?","Question",{"text":62,"@type":63},"The wet vent must not exceed 6 feet in developed length.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"What is the minimum pipe size required for a wet-vented section?",{"text":67,"@type":63},"The section must be no less than 2 inches, and it must be at least one pipe size larger than the minimum waste size of the upper fixture or the aggregate of the served fixtures, whichever is greater.",{"name":69,"@type":60,"acceptedAnswer":70},"Are these vertical wet venting requirements applicable to multiple stories?",{"text":71,"@type":63},"No, the application of this venting method is limited to the same 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SHOWN  \n# VERTICAL WET VENTING REQUIREMENTS:\n\n-LIMITED TO VERTICAL DRAIN RECEIVING THE DISCHARGE FROM THE TRAP ARM OF ONE AND TWO DFU UPPER FIXTURES.  \n-LIMITED TO THE SAME STORY.  \n-THE WET VENT MUST NOT EXCEED 6 FEET IN DEVELOPED LENGTH.  \n-EACH WET-VENTED SECTION MUST NOT BE LESS THAN ONE PIPE SIZE EXCEEDING THE MINIMUM WASTE SIZE OF THE UPPERFIXTURE OR ONE PIPE SIZE LARGER THAN THE MINIMUM REQUIRED SIZE FOR THE SUM OF THE FIXTURES SERVED BY THEWET-VENTED SECTION,WHICHEVER IS LARGER,BUT IN NO CASE LESS THAN 2INCHES.  \n\n| DEPARTMENT OF  \u003Cbr>m  \u003Cbr>LABOR AND INDUSTRY   | (M.R.Chapter 4714,Section 908.1 and related Tables 702.1 and 703.2)     1/22  \u003Cbr>Vertical Wet Venting   |\n| --- | --- |\n|  | Phone:(651)284-5063  \u003Cbr>dli.mn.gov/business/plumbing-contractors/alternates-checklists-and-other-information   |","cbCaiazzlPzCkHv0","https://ap.wps.com/l/cbCaiazzlPzCkHv0","pdf",1252146,"English","# Vertical Wet Venting Requirements\n## System Limitations\n## Pipe Sizing Standards","[{\"question\":\"What is the maximum developed length permitted for a wet vent?\",\"answer\":\"The wet vent must not exceed 6 feet in developed length.\"},{\"question\":\"What is the minimum pipe size required for a wet-vented section?\",\"answer\":\"The section must be no less than 2 inches, and it must be at least one pipe size larger than the minimum waste size of the upper fixture or the aggregate of the served fixtures, whichever is greater.\"},{\"question\":\"Are these vertical wet venting requirements applicable to multiple stories?\",\"answer\":\"No, the application of this venting method is limited to the same story.\"}]","Vertical Wet Venting Requirements - Plumbing Guidelines | PDF"]