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Old 01-24-2008, 07:27 PM   #1
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Gas Leak!!

To make a long story short - I have a gas leak - who knows where....

To get the gas service restored (line was cut during a construction project) to my house I need to pass the pressure test - the plumber installed all new valves on all four furnaces and the newly required drip legs that where not installed when the house was built in the 50's. I have soaped till I am sick of being in the attic!!!

I want to know if anyone sees an issue with me putting 100-200 lbs of air pressure on the line to make this small leak more visible, or will I open up a new can of worms and create more leaks than I probably now have.

Any ideas?




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Old 01-24-2008, 09:35 PM   #2
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Go that high and you will have several new leaks. There is no need for more than 30#.


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Old 01-24-2008, 11:01 PM   #3
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You do have all the valves to the fixtures shut off right? Black pipe can handle a lot of pressure. Auto shops use it for compressed air at 150psi, they don't really care if their is a small leak though. So the answer is you can do it but you risk creating more leaks by boosting the pressure.

I remember when I was younger I would occasionally catch the smell of gas in the basement. The gas company sent someone out three times to look for the leak before they located it. It took about eight hours in total to find.

It's also possible for a cast fitting to be bad and actually leaking through the fitting itself, not the threads.
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Old 01-25-2008, 05:40 AM   #4
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disconnect all appliances. just in case the valves leak. the pressure would kill the gas pressure regulators in the units.

no more than 30lbs. then get a spray bottle with soapy water and spray every joint.
you can also get leak dector for gas from home depot. with that you don`t need to do anything but swab the joints.
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Old 01-25-2008, 06:53 PM   #5
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A second gas leak thread

delete... wrong thread...
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