pressure test

I am running all drain the lines from a new first floor addition over and through the existing foundation wall, and to the stack in the unfinished basement; sink, shower, and toilet. I am running the vent lines through my cape cod's front knee wall, above the stairs, and tying it into the...

The town requires an air pressure test to hold at 6 PSI for a few hours, maybe about 4 hours. I set it to 6 and after about 30 minutes it is down to 4 to 5 psi. I can't find the leak anywhere by listening or by using dish soap. I am seeing there are ultrasonic detectors $50 on Amazon, but I...

Hey everyone, I recently bought a house (Clifton Heights Borough, Delaware County, PA) that needs to have all the inspections done before utilities can be turned on due to it being foreclosed for almost 2 years (and thus there is no gas or water at all in the house, and I am well aware that if I...

Hi Guys, I am an MEP engineer, and need to do a site visit tomorrow where I will need to test water pressure on multiple floors in a 12 story building. The goal being to determine how many of the low floors are fed by street pressure, and how many of the higher floors are served by the storage...

Hoping someone can point me in the right direction. I am building my own house and am almost done all the plumbing. The only thing I cannot find (even from our plumbing supplier) is what is used as a final cap/valve with pressure guage to inflate the system to 5 psi for the pressure test. Am...

How much daytime to nighttime pressure fluctuation can I expect in a PEX system? I've got about 130 ft of 3/4" under 100 psi test and don't have a sense of how much variation I will see. I'm in Tucson so there's about a 30º swing from day to night... Thanks!

We have soaped multiple times, caught all the big leaks, but still can't find the apparently still existent small one(s). We even tried just adding a layer of glue to every joint and that didn't work, either. We're running out of ideas. Interested in hearing your suggestions and stories. When...