Plumbing Venting: Difference between revisions
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=Design= | =Design= | ||
*Vent stack vs stack vent - a stack vent is required in addition to vent stack for 5 stories or more [https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf] | |||
*Vent exends 6" above roof, except if roof is used for purposes other than weather protection - in which case it's 7'. [https://www.bigrocksupply.com/blog/Tubos-Vent-Pipe-Extensions#:~:text=All%20open%20vent%20pipes%20that,be%20run%20at%20least%207] | *Vent exends 6" above roof, except if roof is used for purposes other than weather protection - in which case it's 7'. [https://www.bigrocksupply.com/blog/Tubos-Vent-Pipe-Extensions#:~:text=All%20open%20vent%20pipes%20that,be%20run%20at%20least%207] | ||
*Vent is half diameter of drain served. [https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf] | *Vent is half diameter of drain served. [https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf] | ||
Revision as of 03:18, 29 November 2020
Good reference:
Vent to drain distances included. Island venting. Air admittance valves. Engineered vent with sump pump and air admittance - like under sink macerator pump.
https://wabo.memberclicks.net/assets/pdfs/Plumbing_Venting_Brochure_2018.pdf
Design
- Vent stack vs stack vent - a stack vent is required in addition to vent stack for 5 stories or more [1]
- Vent exends 6" above roof, except if roof is used for purposes other than weather protection - in which case it's 7'. [2]
- Vent is half diameter of drain served. [3]
- Washing machine needs a trap - [4]
- Vent stacks can run up the side of a house - [5]
- Total vent cross sectional area must equal total drain cross sectional area. See point 6 at [6]. Note that air admittance valves add to the total cross sectional vent area.