How to find slow leak in New Plumbing


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Old 06-14-08, 06:31 AM
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How to find slow leak in New Plumbing

Plumbing lines do not have water in them, we have a pressure guage on it to test for leaks, and sure enough, it lost 10 psi overnight.

We can't hear any hissing coming from anywhere and can't connect main water line to it yet.

What are our other options for finding this leak before we continue installing the rest of the plumbing lines?
 
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Old 06-14-08, 06:48 AM
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Not sure how the plumbing guys would do it, but pressurize the pipes and spray soapy water on all the joints and your pressure gauge. It will show up.
 
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Old 06-14-08, 07:38 AM
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Chandler, thank you. That's a pretty good idea.
 
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Old 06-14-08, 09:27 AM
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Don't forget to spray your test gauge.
 
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Old 06-14-08, 11:33 AM
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Thank you, we think we found it. Soapy spray worked great... (now hopefully nothing else is leaking under slab - will find out soon)
 
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Old 12-16-08, 11:22 AM
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Talking General Pipe Leak fixes.

If its a Pipe of any size you can mix up a solution in a spray bottle with 5parts water 1 part dish soap, spray the pipe and look for bubbles. If you do not see bubbles but your still loosing ambient pressure inside the plumbing area, the remove all the surrounding fittings and make sure to use "Teflon Tape" on ALL threads.

For PVC, make sure that ALL surfaces are clean, bur free, and sealed. You can clean with any acetone solvent, and you can assure a sealed fit by applying glue to the sealing surfaces, both inside and out.
 

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