Hot water slows to a trickle.

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Old 01-31-09, 09:22 AM
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Hot water slows to a trickle.

Water is same temperature as normal, but after turning on, it comes out at full pressure for a few seconds, then dries up to a trickle.

After running hot water for a few minutes, the water continues to run through the pipes leading into the water heater for a few minutes.

I suspect the shutoff valve above the water heater is defective. Does that sound right? Can it be repaired, ie can I replace the innards and fix it if defective, or do I need to get a plumber to come and sweat out the brazed in fittings and braze in an entire new assembly?
 
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Old 01-31-09, 11:22 AM
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is this in just 1 faucet or in the whole house? if it is just 1 faucet wither it is a problem in the faucet or the piping leading to it. if it is the whole house the best thing would be to post a picture of hte pipes going into and out of the water heater.. if whole house i suspect the is a steel nipple that is occluded
 
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Old 01-31-09, 11:53 AM
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Entire house

All the faucets in the house area affected. I am attaching a picture of the top of the water heater with attached plumbing.
 
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Old 01-31-09, 04:10 PM
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Yes, the cold water supply is choked off causing you to pull a vacuum when the hot faucet(s) is(are) turned on. So obvious all I had to read is a couple lines to deduce this. And the restriction could be anywhere between the w/h's cold side (if not right at the fitting into water heater or valve), and where a GOOD cold water flow tees off from that same cold water line.

Fittings- couplings- elbows, disimilar metals, almost closed valves or displaced washers in valves can be most common culprits.

What is on the other side of that wall that the pipes come through?
 
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Old 02-01-09, 05:36 PM
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I have this same problem but with just the kitchen sink. I have no experience with plumbing, so if anyone could help me please it would be much appreciated
 
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Old 02-02-09, 11:47 AM
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Originally Posted by takyo_style View Post
I have this same problem but with just the kitchen sink. I have no experience with plumbing, so if anyone could help me please it would be much appreciated
please post in a new thread since your problem may be completely different.

skywatcher, i see some things that may be a problem but the picture is to small or to far away for me to tell exactly what is going on with your pipes
 
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