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#1 |
Member
Trade: Drywall Finisher
Join Date: Jan 2009
Location: Ohio
Posts: 66
Rewards Points: 75
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Air Pressure Test In Water Lines
Im working on buying a forclosed house, but i know that the water lines leak and in order for the inspection to pass, i need all the water pipes to not leak, im trying to find where the leaks are, so I hooked up my air compressor to an open copper water pipe in the laundry room to see if the pipes would hold air, but the pressure gauge didn't go up at all. I checked everything visiable (faucets, capped pipes near the water main etc.) and nothing seemed to be leaking air. I hear a hissing noise behind the bathtub which unfortunatly shares a wall with the kitchen where all my cabinets are. I'de hate to start ripping the back of the cabinets up unless im sure thats where the leak is. Is there anywhere else i could check or any other tests i could do to pinpoint the leak(besides turning the water on and finding the water), any help would be appreciated as i know nothing about plumbing, thanks.
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#2 |
Plumber / Carpenter
Trade: Virginia Building and plumbing contractor
Join Date: Mar 2006
Location: Farmville, Va
Posts: 1,652
Rewards Points: 1,014
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Re: Air Pressure Test In Water Lines
Fill with 100 to 120 psi air, listen for hissing, rip out wall, repair. Thats all besides replacing all of it.
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#3 |
Pro
Trade: sparky
Join Date: Jan 2008
Location: SW Michigan
Posts: 591
Rewards Points: 500
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Re: Air Pressure Test In Water Lines
got one of them little snake scopes where you can look into a wall through a little hole?
btw; I would suggest, if possible, to remove the cabinets rather that tearing up the backs. |
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#4 |
Member
Trade: Drywall Finisher
Join Date: Jan 2009
Location: Ohio
Posts: 66
Rewards Points: 75
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Re: Air Pressure Test In Water Lines
maybe ill up my pressure i was only using 25psi. and im not worried about the cabinets, im going to replace them they are pretty worn. i dont have a snake scope but maybe it would be worth it depending on the price, thanks for the input guys
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#5 |
The Grand Wazoo
Trade: It blowed up real good!
Join Date: May 2007
Location: Illinois
Posts: 3,916
Rewards Points: 1,864
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Re: Air Pressure Test In Water Lines
Use a stethoscope, it will help you hear exactly where it is leaking.
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A flush is better than a full house. |
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#6 |
Member
Trade: Drywall Finisher
Join Date: Jan 2009
Location: Ohio
Posts: 66
Rewards Points: 75
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Re: Air Pressure Test In Water Lines
just wanted to give an update- went in there today and it was infact the water line that lead to the bathtub, so i ripped out the back of the cabinet and fixed the pipe; thanks for the help
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