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Posted by Speedy Jim on May 27, 2006, 8:52 pm
Eigenvector wrote:
> This is really more of an exasperated shout out than a question but
> sometimes you just have to ask.
>
> After having performed many small repairs to my galvanized pipes, I'm
> repeatedly thwarted by the threaded connections between the galvanized and
> the replacement. Is there a real good trick to making a leak proof
> connection between an old pipe and a new one? I've tried using teflon tape
> in small amounts on the threads, I've tried reefing down on the joint so
> hard the planet tilts sideways in reaction, I've tried cleaning the two
> joints so well that you could see my reflection in the threads from a block
> away. None of this ever produces a joint that stays leak free. I don't
> mean a gusher, I mean drip.........drip............drip...............drip.
> It does stop dripping, after about 2 weeks when rust forms between the two
> pipes.
>
> Everyone talks about pipe dope, I have yet to try that, mostly because after
> a while my stubborness overcomes reality and after that all rational thought
> is blocked. I guess I just don't see what pipe dope would do that 2 tons of
> torque on the joint wouldn't. Just kidding really, I do understand that too
> much force distorts the threads and probably makes the leak worse.
>
> I don't seem to have this problem betwen two new pipes, only between the old
> galvanized and the new one.
>
>
Common problem with old galvanized pipe; the threads deteriorate
so badly that they can't possibly seal.
Pick up a small bottle of Loc-Tite thread sealant.
It makes a permanent seal without any tape or dope.
Apply to bright, clean threads.
Jim
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