Can't get out the old wall pipe

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Old 10-13-03, 06:47 PM
Petersonde
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Can't get out the old wall pipe

I have a house that was built in 1959. The metal drain pipe that goes into the wall is corrided and leaking.

I can't get the old pipe out, tried twisting, pipe wrench on the nut, torch, etc.

Any thoughts greatly appreciated.

 
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Old 10-14-03, 06:58 AM
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Use a sawsall and cut it out.
 
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Old 10-14-03, 10:16 AM
brickeyee
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That looks an awful lot like a soldered copper DWV line.
 
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Old 10-14-03, 10:29 AM
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From what I see, you can get a small 10" pipe wrench on the nut that threads into the mechanical tee (cast-iron) in the wall.

Two tricks:


Hook a pipe wrench to the nut, and hit the handle hard repeatedly with a hammer,,,,,,,fast and short taps with penetrating oil on the threads if visible.


Or use the same pipe wrench and use a piece of pipe about 3 foot long and is large enough to slide over handle of pipe wrench and use it like a breaker bar.


Mechanical tees are common in old cast-iron systems and this fitting your removing is the type that the trap arm was soldered into.

If all else fails, do exactly as Plumber2000 says and cut the chrome pipe flush with fitting, put sawzall blade inside of opening and start cross cutting the fitting just enough open at least one side of the fitting (make sure you don't cut into the female threads too much on the mechanical tee) to then use a hammer and chisel to collapse the fitting and pull out .


My suggestion is to cut the fitting at the 12 o'clock position, knowing the chances of the potential leak would not be up top.....and be able to use a chisel and hammer and use downward force to crush down the fitting to remove.


Use teflon tape and thread sealant on the new fitting you put in; any small cut you put in tee will be closed up by using this on the new connection.
 
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