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Old 12-23-2012, 01:16 PM   #16
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Low hot water pressure...


Haven't been able to get the neighbor over here since he is so busy with work. But I took a pic of the top of the water heater and Im thinking there isn't a heat trap as it looks like standard pipe coming out the top... though the right side (assuming its the hot) looks rather messy like its been leaking or something... where as the left side looks crystal clean.

http://img824.imageshack.us/img824/3957/69464798.jpg

Any thoughts? I guess I could try this myself if I had a clue what to do if someone would be willing to give me a step by step.

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Old 12-23-2012, 02:14 PM   #17
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Low hot water pressure...


Those steel nipples may still contain flaps or marbles. The energy-saving ones sometimes look just like normal nipples.

If it were me, I'd go buy a pair of water heater dielectric unions. (Ones without energy saving devices.) Then I'd replace those two steel nipples between the tank and the flex copper, with the new dielectrics.

Usually the right one is cold and the left is hot, though. That right-hand copper flex looks like it has been leaking, so you might pick up one new copper flex also. Measure the old so you get the right length (typically 18 or 24 inches).

You'll need a crescent wrench and a pipe wrench. The crescent to get the nuts from the flex copper off the nipples, and the pipe wrench to get the steel nipples out of the tank.

Once those steel nipples are out, you can look in them to see if there's a restriction. The corrosion you see on the outside may just be the tip if the iceberg, there may be a whole lot more on the inside.

Also look down inside the tank with a flashlight with the nipples off. Sometimes, the anode rod is part of the hot side connection. If so, the rod may have fallen apart and clogged up the works. Hopefully that's not the case, as you may find it difficult to get the old one out in order to install a new one.

When you put everything back together, use 4-5 wraps of teflon tape on each connection and don't crank them down super tight. If it seeps water you can nip it up a bit.
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Old 12-23-2012, 03:59 PM   #18
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Low hot water pressure...


Appreciate the quick response... was wondering if I need to turn off the gas or can I keep that on and just kill the cold water coming in since Im not draining?
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Old 12-23-2012, 05:20 PM   #19
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Low hot water pressure...


Quote:
Originally Posted by BCrossan View Post
Appreciate the quick response... was wondering if I need to turn off the gas or can I keep that on and just kill the cold water coming in since Im not draining?
You can keep the gas valve on and kill the cold, but turn the thermostat to "Vacation" (or as low as it goes) so it doesn't fire while you're working.
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Old 12-23-2012, 07:46 PM   #20
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Low hot water pressure...


make sure you relieve the pressure still in the lines before disconnecting any water lines
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Old 12-31-2012, 07:04 PM   #21
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Low hot water pressure...


Woohoo! All fixed! Neighbor removed the nipple and though it wasn't a heat trap... a nasty sediment buildup was going on and a pinhole was all that was open for the water to come through. SO badly buildup that it had to be drilled out, but now we got great hot water pressure again. Thanks for the help guys. Now I can wash dishes and get a shower without frustration.
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Old 12-31-2012, 07:08 PM   #22
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Low hot water pressure...


Cool, thanks for letting us know the fix!

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