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Old 11-25-2006, 12:20 AM   #1
sz8
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water heater dilemma


Hi,

I recently found that hot water in my house is running low pressure.
If I turn on two faucets with hot water only, it runs quite slow.

I checked and found that the valve at the inlet (3/4" copper pipe) of the water heater
can not be turned off. It simply keeps turning and never locks
at either direction.

I suspect that the valve does not open completely causing the
problem. I think I have two options:

a) Repair/replace the valve (soldered on).

b) Have the water heater (9 year-old, 50 gallon/natural gas type)
changed with the valve replaced by professionals.

For option a), I am not sure how hard it is. I don't have much
plumbing experience other than installing a under sink water filter
with a compression Tee added. But I am a pretty handy person.

Or if the water heater needs to be replaced anyway, then I don't
need to bother. BTW, the water heater's brand is "American" and
never failed before.

Any suggestions?

Thanks,

SZ

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Last edited by sz8; 11-25-2006 at 12:00 PM.
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Old 11-25-2006, 09:12 AM   #2
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water heater dilemma


Go with option A, replace the valve with a new ball valve.

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Old 11-27-2006, 02:16 PM   #3
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water heater dilemma


tricky? From what I know, the procedures should be:

1. turn off the house water.
2. open up one of the hot water faucet.
3. drain the water heater (with a garden hose hooked on).
4. cut off the old valve and solder on a new one.

Is there anything that I need to be really careful ?

One of my concern was that: since I never drained the water heater,
it might not be able to drain. Also, if it drains, it might not be closed
again due to old seal. Is such thing common for a 9-year old water heater?


Thanks,

SZ
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Old 11-27-2006, 03:29 PM   #4
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water heater dilemma


If it is electric then turn the breaker off first.
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Old 01-01-2007, 03:24 PM   #5
sz8
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water heater dilemma


Hi,

I've finally done the valve change myself. This is something I
never thought that could be done myself. Thanks to this forum.

Here is the picture. By the way, I did not drain the water heater
before the change.

http://i27.photobucket.com/albums/c200/shanzhu/pipe.jpg

Thanks

SZ
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Old 01-01-2007, 03:35 PM   #6
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water heater dilemma


Nice Job

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