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paulz
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# Posted: 3 Nov 2022 12:20 - Edited by: paulz
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Got up this morning, started to do some much needed cabin cleaning now that it's cold and wet outside, and notice a faint propane smell. Sure enough small leak at a threaded pipe joint. Oddly haven't touched anything in a couple years. Corrosion? Tried to give it another turn, nope. Took off the offending elbow.
I think I have a replacement, but wondering about liquid pipe thread sealant, never used it. Is it better than tape? I have to go almost to town today, could pick some up.
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jsahara24
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# Posted: 3 Nov 2022 12:40
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I'm far from an expert, but I've always struggled with getting pipe dope to seal a joint....Seems like a lot of people prefer it though... I've stuck with the yellow teflon tape with good success....
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gcrank1
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# Posted: 3 Nov 2022 12:42
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The tape comes in different thicknesses, did you use the thick Yellow for gas fittings? If you must use the white thin stuff do like 6 wraps min.
Note that if the exposed tape isnt yellow it wont likely pass inspection. It aint expensive.
Be sure to make the inside and outside threads are deburred and clean to start. I like to thread things together just to beginning to get snug so the threads have mated, then disassemble, tape or sealant and torque together.
I have all, the plumbing and gas teflon tape and industrial paste. Gotta say I had more failures with tape than the paste but none since using the procedure above.
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ICC
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# Posted: 3 Nov 2022 13:48 - Edited by: ICC
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Oatey pipe sealant with ptfe is excellent. It is a paste. It is messier than tape to use but I have never had a leaking joint with it. Apply liberally, brushing into the threaded male end. NOT in the inside threads on a female coupling. Tighten and wipe off the excess. I use paper towels.
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Tim_Ohio
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# Posted: 3 Nov 2022 14:01
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I second the Oatey. Plumbers will not use a tape on gas lines, or if they do they will also use the paste, as well.
Tim
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ICC
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# Posted: 3 Nov 2022 14:14 - Edited by: ICC
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Hand tight then 2 to 3 full turns (up to 1 inch pipe).That should result in a full 5 to 6 engaged threads. More or less is too tight or too loose or out of spec threads.
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paulz
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# Posted: 3 Nov 2022 16:04
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Only sealant they had was this Rectorseal. New elbow, slathered it on, plus the other connections I had to undo. So far so good.
Too much electrical and plumbing lately, need to bend some nails.
Here's my gas detector BTW, works great, about $30.
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ICC
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# Posted: 3 Nov 2022 22:06
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I've used Rectoseal products too. Oatey is the brand the local hardware and building supplies store carries.
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