Plumbing Venting: Difference between revisions
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*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] | |||
*Washing machine needs a trap - [https://homesteady.com/info-12003105-washing-machine-need-trap-drain-line.html] | *Washing machine needs a trap - [https://homesteady.com/info-12003105-washing-machine-need-trap-drain-line.html] | ||
*Vent stacks can run up the side of a house - [https://www.metrorod.co.uk/about-us/news/soil-vent-pipes-cornerstone-drainage-system/] | *Vent stacks can run up the side of a house - [https://www.metrorod.co.uk/about-us/news/soil-vent-pipes-cornerstone-drainage-system/] | ||
*Total vent cross sectional area must equal total drain cross sectional area. See point 6 at [https://garynsmith.net/venting-101-air-admittance-valve-pros-cons/#:~:text=When%20properly%20installed%20an%20air,building%20drain%20and%20building%20sewer.]. Note that air admittance valves add to the total cross sectional vent area. | *Total vent cross sectional area must equal total drain cross sectional area. See point 6 at [https://garynsmith.net/venting-101-air-admittance-valve-pros-cons/#:~:text=When%20properly%20installed%20an%20air,building%20drain%20and%20building%20sewer.]. Note that air admittance valves add to the total cross sectional vent area. | ||
Revision as of 03:09, 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 exends 6" above roof, except if roof is used for purposes other than weather protection - in which case it's 7'. [1]
- Vent is half diameter of drain served. [2]
- Washing machine needs a trap - [3]
- Vent stacks can run up the side of a house - [4]
- Total vent cross sectional area must equal total drain cross sectional area. See point 6 at [5]. Note that air admittance valves add to the total cross sectional vent area.