Re: Residential PVC, DWV Rough Plumbing Test
Now don't take this as being a smart (.) but why do you fill the system all the way to the roof vent? Just because you can require them to do so?
There is no way that sewer can back up to a point above the roof.
P2503.5.1 Rough plumbing. DWV systems shall be tested
on completion of the rough piping installation by water or
air with no evidence of leakage. Either test shall be applied
to the drainage system in its entirety or in sections after
rough piping has been installed, as follows:
1. Water test. Each section shall be filled with water to a
point not less than 10 feet (3048 mm) above the highest
fitting connection in that section, or to the highest
point in the completed system. Water shall be held in
the section under test for a period of 15 minutes. The
system shall prove leak free by visual inspection.