How do you determine the size of the roof vent for a complete DWV system? This is in WI, and a single family residential house. The WI plumbing code can be found online here...
https://docs.legis.wisconsin.gov/co...and_buildings_and_environment/380_387/382.pdf
WI SPS 382.31 Vents and venting systems - I read it that it says if the Diameter of the Drain Stack at Base is 4 inches, then the vent can be 3" as long as the total length of the vent is less than 180 feet. Am I missing anything here or is my understanding correct?
Thank you
https://docs.legis.wisconsin.gov/co...and_buildings_and_environment/380_387/382.pdf
WI SPS 382.31 Vents and venting systems - I read it that it says if the Diameter of the Drain Stack at Base is 4 inches, then the vent can be 3" as long as the total length of the vent is less than 180 feet. Am I missing anything here or is my understanding correct?
Thank you