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currious 04-05-2007 08:25 AM

What air pressures do plumbers use to test new whole home/building systems?

warnerww 04-09-2007 02:20 PM

If you are talking about the drain system they just do a stack test. Go to the roof and fill vent pipe with water. When I built my house the fresh water system was tested at 40 psi. I have no idea if that is what most plumbers use or not but mine held that pressure.

Ron6519 04-09-2007 02:56 PM

When the plumber tested the new gas lines he just used a bicycle pump and got it about 15psi. Had to hold for a few hours to pass.

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