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Old 06-25-2018, 08:32 AM   #1
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Default Pipe thread magical sealant

Serious question.

Ive taped/ doped. Ive doped/ taped/ doped. Ive used white dope and let sit till hard.

So I have a pot filler. It drips 1 drip every 3 days...
Threads are BPT. And I used the "rough in adapter" BPT thread x NPT.
Threads on the pot filler are 1inch long and you can hand tighten it all the way, like a running thread. Threads are designed to be cut down if needed.
This design I think should have a washer, but it doesn't and you cant make one fit either.

So I'm looking for a magical potion I can goop on this thing so it will stop leaking.
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Old 06-25-2018, 09:17 AM   #2
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[QUOTE=mass plumber;1176652]Serious question.<snip>

When I apprenticed in 1955, the first day on the job the boss said. "If you are installing any threads that are brass to brass or chrome plated, or assembling threads that were previously used -- with the exception of gas piping". Lamp Wick the threads. Now in 1955 teflon tape did not exist, and the pipe dopes did not have all the additives there are today. But I still have a spool in my tool box.
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Old 06-25-2018, 10:06 AM   #3
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Running thread?

Teflon tape, thick towards the end. Not the best way, but can work.

Thread shellac sets hard, still may need to fill threads with Teflon. Shellac-tape-Shellac.
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Old 06-25-2018, 11:54 AM   #4
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Thanks Guys.
It is actually screwed up.
My plumber is there today, gave some wicken this morning.
Still leaks.
Thinking of a JB weld product...

Id buy another pot filler..but its from Germany and 2,700$ And of course people are moving into this 50million $ house tomorrow..
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Old 06-25-2018, 06:30 PM   #5
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Why can't you make a washer fit?
Is it leaking at the BPT adapter? If so, you may not have the right one.
Is it BSPP or BSPT? If it's BSPP, a washer is my recommendation.
If you can't find one, fiber washers can be fabricated.
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Old 06-25-2018, 10:40 PM   #6
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get rid of the junk. non tapered threads never seal and I will not warranty or insure it.
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Old 06-26-2018, 02:56 AM   #7
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Sorry, I have to say my experience is the same as Schmitz'.
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Old 06-26-2018, 06:46 AM   #8
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Trade secret : mop strand and dope. Not sure if it will fit your application.
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Old 06-26-2018, 11:52 AM   #9
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Just throw some X-pando on it, hand tighten and be done with it...
They make one that safe for water supply.
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Old 06-26-2018, 12:24 PM   #10
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Quote:
Originally Posted by 89plumbum View Post
Just throw some X-pando on it, hand tighten and be done with it...
They make one that safe for water supply.
Cool, never heard of that.
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