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Have about 100 feet of new line that I've pumped up to 15PSI to test. And it's dropping over a 36 hour period to about 12 pounds. I was recently told by local plumber that inspector will only need to see 10 pounds for 10 minutes, which my line holds no problem (and more). [Gas pressure here is...

So if I don't see a drop past a few PSI, and it holds in that range, your saying it's likely that I don't have a leak, right?

I have a question about the 15 PSI test. I ran about 100 feet of new line (30 feet in the basement, and 70 outside in a 24" ditch, to be buried later). Test at 15psi holds steady for about 2-3 hours, then drops slowly over the 24 hour period to about 12psi. I've gone and tested every joint with...