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Old 01-09-2008, 10:58 PM   #1
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Water heater hot outlet union leaking


Outlet has a 3/4 nipple screwed in, then a 3/4 metal (appears to be galvanized) union going into another 3/4 nipple soldered to copper piper.
Water started leaking from the union today. Tonight I disconnected, cleaned and used teflon tape on the threads of the union but it still leaks after two attempts.
Other than replacing the union are there any other suggestions?
Should I be using pipe dope instead of teflon tape?
Thanks in advance,
Jay in Illinois

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Old 01-09-2008, 11:46 PM   #2
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Water heater hot outlet union leaking


Exactly where is the union leaking. Where the two halves go together or on either side?

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Old 01-09-2008, 11:56 PM   #3
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Water heater hot outlet union leaking


It's leaking around where the big nut joins the two pieces together, water is coming up through the threads.
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Old 01-10-2008, 07:14 AM   #4
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Water heater hot outlet union leaking


Ayuh,......

Those fittings seal against their Faces,... No need for Tape or Sealant.....

My 1st Guess is,... Your's has corroded or rusted,+ Probably needs to be Replaced.....
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Old 01-10-2008, 10:07 AM   #5
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Water heater hot outlet union leaking


It is odd that it started leaking out of the blue. You could try using pipe dope on the threads and use 2 big wrenches to tighten things back up. Hope it works.

Mike
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