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Old 08-02-2010, 10:22 AM   #1
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Leaking Water heater


I just replaced a 7 year old Rheem Power Vent water heater. It was leaking from the hot water out, and the pressure valve.

I tried a new pressure valve, and also new teflon tape on the hot water out, but still leaking.

Did I do the right thing by replacing it? or could I have fixed it?

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Old 08-02-2010, 10:52 AM   #2
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Leaking Water heater


Is there an expansion tank above the WH? If not, your new WH may weep water from the TP valve. Reason: the water expands as it is heated and builds up pressure in excessive the setting on the TP valve. You might have saved the old WH with an expansion tank.

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Old 08-02-2010, 11:06 AM   #3
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Is there an expansion tank above the WH? If not, your new WH may weep water from the TP valve. Reason: the water expands as it is heated and builds up pressure in excessive the setting on the TP valve. You might have saved the old WH with an expansion tank.
No, no expansion tank. would the weeping be from where the TP valve screws into the tank? Also hot water was weeping where the nipple(is that what is called?) screwed into the tank.

Also I believe it was still leaking when water was cold. (I am second guessing my self at this point), but I had drained the water heater and did the new teflon, and then filled it and leaking occured right after refilling.

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Old 08-02-2010, 11:27 AM   #4
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Leaking Water heater


If it was cold and still leaking where you describe the issue was not the lack of an expansion tank.
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Old 08-02-2010, 02:03 PM   #5
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I tried a new pressure valve, and also new teflon tape on the hot water out, but still leaking.
When you say it's leaking from the "hot water out" do you mean from where the nipple goes into the tank or where the supply line connects to the nipple? Did you use the old supply lines when hooking up the new tank? I would replace those also.

I would also use tape and dope (pipe thread sealant). Make sure it's good and tight. Sometimes it just takes one last little cinch to get it to seal.

If your T&P is leaking you may also have a water pressure problem. Do you know what the water pressure is at the house? Shouldn't be over 80PSI.
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Old 08-02-2010, 02:08 PM   #6
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When you say it's leaking from the "hot water out" do you mean from where the nipple goes into the tank or where the supply line connects to the nipple? Did you use the old supply lines when hooking up the new tank? I would replace those also.

I would also use tape and dope (pipe thread sealant). Make sure it's good and tight. Sometimes it just takes one last little cinch to get it to seal.

If your T&P is leaking you may also have a water pressure problem. Do you know what the water pressure is at the house? Shouldn't be over 80PSI.
It seemed to be leaking where the nipple goes into the tank. Both the hot water nipple and the T&P were leaking where they screwed into the tank. Even with cold water.
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Old 08-02-2010, 02:11 PM   #7
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It seemed to be leaking where the nipple goes into the tank. Both the hot water nipple and the T&P were leaking where they screwed into the tank. Even with cold water.
Were they already installed from the factory or did you put them in?

Either way make sure they're good and tight, doped and taped. Use a pipe wrench.

Check your water pressure also.
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Old 08-02-2010, 02:12 PM   #8
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Just realized in your last post you said they "were leaking" (past tense). Does that mean you already got it taken care of?
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Old 08-02-2010, 02:17 PM   #9
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Just realized in your last post you said they "were leaking" (past tense). Does that mean you already got it taken care of?
Well, I bought a new water heater. I couldnt get the old one to stop leaking.
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Old 08-02-2010, 02:24 PM   #10
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Well, I bought a new water heater. I couldnt get the old one to stop leaking.
...but having problems with the new one also right?
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Old 08-02-2010, 02:25 PM   #11
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...but having problems with the new one also right?
No, just the old one. was asking about the old one as the 700 for the new one is giving me strong buyers remorse.
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Old 08-02-2010, 02:29 PM   #12
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No, just the old one. was asking about the old one as the 700 for the new one is giving me strong buyers remorse.
Oh gotcha! I thought you were having problems with the new one leaking.

Hmmm well I'd say at 7 years there's nothing wrong with replacing it. Typical lifespan on a water heater now days is about 8-12 years if properly maintained.

The new one will probably be more efficient. If you still have the old one though and it was working ok, try to sell it on Craigslist or put an ad in the paper. Maybe 300 bucks. That'll help you recoup some of the money. If you have a hard time selling it maybe donate it to Habitat for Humanity or a similar non-profit. Tax write off and a good thing to do.

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