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Old 07-12-2010, 09:00 AM   #1
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Leaking Water Heater (from Cold Inlet?)


Hello all,

I am on situation here. Hopefully, someone can give inputs.

My water heater is leaking, from cold inlet somewhere around nipple (I guess?)

The house is forclosure, and had been sitting (winterized) for a while.
After I turned water back on, I noticed that carpet near the utility room was damp.
So, I went to check utility room and found water under water heater,
looked around and found water at the top of water heater.

I closed input valve at the cold inlet, and main shut off valve, drained the tank,
and cleaned up the maze.

I turned water back on again, feel and hear water flow from cold inlet to the tank.
After a while, I saw water come out from the nipple of cold inlet (where the pipe meet top of the tank)

From following the forum and some research, If I am lucky, changing union and dielecric (nipple?) might stop the leak.
I am not sure how old of water heater, but from the code it is manufatured in '98.

Any input please? I am super new, and this is my first house. Hopefully, there are something I could do before writing a check.

Thank you very much.

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Old 07-12-2010, 09:28 AM   #2
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Leaking Water Heater (from Cold Inlet?)


If its 12 years old I'd just replace it

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Old 07-12-2010, 10:31 AM   #3
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Leaking Water Heater (from Cold Inlet?)


That was my first thought.
My 2nd thought is to stretch it a little, before I have more budget.

I guess, my best bet is to find the way to save money on new one, rather than mess with old one.

Thanks for the input.
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Old 07-12-2010, 12:31 PM   #4
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Leaking Water Heater (from Cold Inlet?)


That spot could be rusting out. Had that happen to mine, it was the nipple that had rusted out fortunately where it screwed into the tank was okay.

Get it fixed "real soon". If it had indeed rusted out, pipe vibration could cause it to snap off at that spot.
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Old 07-12-2010, 12:43 PM   #5
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Leaking Water Heater (from Cold Inlet?)


yes, it is rust.
I should take the picture.

Hopefully, I am lucky that it is just the nipple rusting, not welding.
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Old 07-12-2010, 06:51 PM   #6
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Leaking Water Heater (from Cold Inlet?)


Oh yes, there may be a ring shaped fragment of the pipe nipple left behind. You will need to carefully make some vertical grooves in this without damaging the threads in the tank inlet, to make it easier to get rid of the ring.
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Old 07-12-2010, 09:20 PM   #7
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Leaking Water Heater (from Cold Inlet?)


FYI - not sure if this applies to your situation, but I had the same problem (leak around the inlet). I left it for 2 days, and on the 3rd day i came home to 4" of water in my basement. At the very least...shut off the inlet valve when you are asleep or not home till the problem is fixed or replaced.
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Old 07-12-2010, 09:30 PM   #8
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Leaking Water Heater (from Cold Inlet?)


"(where the pipe meet top of the tank)" -------- rusted out. Remember to air purge the lines while filling before flipping breaker on new one, if electric.

Be safe, Gary

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