Im trying to hook up a gas dryer (Electric's Motor is shot). I have a
1/2" threaded black pipe near my hot water heater thats capped off,
unfortunately, the cap is very rusty, and im worried about damaging the
pipe trying to remove it with a pipe wrench. Any tips for getting the
rusty cap off? Would I risk damage if I applied too much pressure to
My experience would suggest you just use as large a pipe wrenches
as you need. You won't hurt the pipe cap. You need two wrenches,
one to "back up" the pipe while you break the cap free with the
(top posted for your convenience)
Keep the whole world singing . . . .
DanG (remove the sevens)
Is that cap on a drip leg? You still need to have one if it is.
Use the biggest wrenches you can find, slip a piece of pipe over the handle
if need be, for more leverage. Yes, it may break the cap, less likely the
pipe, but be sure to hold it steady so you don't loosen all the joints in
-heat the cap with a torch and give it a few raps with a hammer, then
-cut most of the way through the cap on two sides and the top with a
sawzall being careful not to knick the threads (the threads at the very
end of the pipe you can just graze). Support the cap opposite the cut
with a block of wood or prybar. Use a cold chisel to split the cap.
Thanks for the tips guys! I had my stepson hold the pipe tight and
steady and put my pipewrench on it and gave it several hard thwacks
with a hammer then turned as hard as I could. From there on everything
worked without a hitch! I feel so handy :p
I've not only seen gas pipes heated, but welded. Not long ago I saw a 3"
line cut open with a cutting torch when the gas was though to be off. It
wasn't. Amazingly, there was just a long flame but not a lot of force as it
is low pressure. The line was then shut off and the cutting and welding
Yes, you do risk breaking it. As the other gentleman wondered, wondering if
what you have is a drip leg. Hmm.
In any case, the answer is two pipe wrenches. It also sounds like you're not
really familiar with working on black iron. I'd suggest to find a more
experienced worker for th is job, so you can get some practical training.
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