Re: teflon tape on black iron gas pipe
Posted by hj on June 11, 19100 at 23:17:27:
In response to Re: teflon tape on black iron gas pipe
It is immaterial if you cannot get it to hold pressure and cannot find the leak, then you may have to disassemble and redo it anyway. I do not subscribe to using teflon tape on steel pipe threads since a friend did a large gas system and had to redo it because of multiple leaks.

: : I had a gas line and meter installed and put together a gas distribution system. Unfortunately, I cannot get it to pressurize. It slowly leaks down in spite of all the soapy water on all the joints that show no discernible leaks. I have been told that it is because I used the wrong type of teflon tape - the white stuff which is gas permeable rather than the yellow "gas" stuff. I was also told that my installation would be rejected by the inspector anyway because of the use of the "wrong type of tape" and that I should tear the whole system apart and either use the yellow gas tape or, use a gas approved dope. Is this correct or is this Eagle Hardware fantasy?

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