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Old 02-08-2018, 05:47 PM   #1
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Disassembling black pipe gas line


I need to disassemble the gas line and turn the highlighted elbow 90 degrees toward the white ducting. My goal is to run new line toward the right.

Should I spray PB Blaster on it and leave it overnight?

How can I turn the highlighted elbow toward the right without leaving the connection loose?

I picked up some pipe joint compound. I’ve heard people like using the tape and the compound in conjunction with one another.




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Old 02-08-2018, 05:53 PM   #2
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Re: Disassembling black pipe gas line


Take the ell off, clean the threads of any pipe dope, apply 4 wraps of Teflon tape and re-assemble with the 90 ell in the direction needed.
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Old 02-08-2018, 05:57 PM   #3
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Re: Disassembling black pipe gas line


^^ turn the gas off first
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Old 02-08-2018, 06:02 PM   #4
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Re: Disassembling black pipe gas line


Use real pipe wrenches not vise grips or pliers. Should not need any PBblaster.
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Old 02-08-2018, 06:08 PM   #5
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Re: Disassembling black pipe gas line


I always ran my gas pipes with the image in my mind of my home blowing up from a gas leak

So I always make my black pipes joints with yellow gas pipe tape on cleaned threads, then apply that nasty, green funky pipe dope on the tape...back a bit from the threads end so it cannot get in the pipe later. Then, tightened it with pipe wrenches. Then check my work with soapy water for leaks when the gas is back on. JMO though. .
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Old 02-08-2018, 06:12 PM   #6
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Re: Disassembling black pipe gas line


Use yellow gas approved for gas tape or far better Teflon pipe dope, never white teflon tape!
That old plastic vent hose has to go!
It would take all of 30 sec. for it to melt and cause a fire.
If this was my job all that sheetrock would go, wall would be be built out so that vent could be run with solid Galv. without having to stick out from the wall!
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Old 02-08-2018, 06:28 PM   #7
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Disassembling black pipe gas line


Quote:
Originally Posted by TarheelTerp;
^^ turn the gas off first

Just spoke with the building manager.

There’s no shut off valve for my condo unit and turning off the buildings gas is a pain because everyone’s pilot light needs to get relight.

I now recall when I first moved here, a plumber replacing my old shutoff valves to 1/4” turn valves while the gas line was on. He was pretty calm the whole time and me an idiot for standing next to him.

I’ll be giving him a ring tomorrow.


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Last edited by jaketrades; 02-08-2018 at 06:48 PM.
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Old 02-08-2018, 06:45 PM   #8
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Re: Disassembling black pipe gas line


Being in an apartment building you are most likely not allowed to do this work yourself.
The plumber/gas fitter you call will know what to do.
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Old 02-08-2018, 07:02 PM   #9
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Re: Disassembling black pipe gas line


Not installing separate valve is a cheap way to go. I ran into that in a 3 floor coop. I had to do some plumbing & I couldn't find a separate cold water valve. I still think that one existed although the owner said that she never saw it.
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Old 02-08-2018, 07:37 PM   #10
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Re: Disassembling black pipe gas line


No location in your profile so impossable to know what local codes are.
Most would call for a permit, inspections.
If you do not own this building stop!
There should have been a shut off right behind the dryer and a flex line to make the final connection to meet even basic codes.
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Old 02-08-2018, 08:31 PM   #11
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Re: Disassembling black pipe gas line


Quote:
Originally Posted by SeniorSitizen View Post
Take the ell off, clean the threads of any pipe dope, apply 4 wraps of Teflon tape and re-assemble with the 90 ell in the direction needed.
Teflon isn't allowed in all jurisdictions. In others it must be natural gas rated. I otherwise agree.

OP: That gas fitter sounds experienced. He's a good idea.

Cheers!
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Old 02-08-2018, 09:43 PM   #12
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Re: Disassembling black pipe gas line


Quote:
Originally Posted by joecaption;
That old plastic vent hose has to go!
It would take all of 30 sec. for it to melt and cause a fire.
If this was my job all that sheetrock would go, wall would be be built out so that vent could be run with solid Galv. without having to stick out from the wall!

Moving the gas is part of a larger project. The washer and gas dryer are being moved from this location into the closet to the right. They will be stacked in the closet and connected to a washing machine box. (Drain, hot and cold lines)

The santee in the first pic is going to get spun 180 degrees and the drain will get moved into the closet. The gas will also get moved into the closet.

The copper supply lines run thru the closet so I will intercept them in the closet and install hammer arrestors on that line.

The dryer vent flume is to the right of the closet. I will tap into that flume with proper ridgid metal dryer venting. This is going to be a little tricky bc I’m tight on depth space but I think I have just enough to make it work.

And yes all that sheet rock is getting ripped out along with that plastic vent hose. I wonder if that hose actually makes it to the dryer flume.











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