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BarbaraJean

03:34PM | 10/15/01
Member Since: 09/14/01
12 lifetime posts
Bvplumbing
My new water heater occasonally spurts water out of the pressure relief valve. It did it today when I turned on the washing machine. Sometimes it happens when a toilet is flushed or a foucet is turned on. Any ideas why this is happening?

DH

03:57PM | 10/15/01
Member Since: 09/23/01
242 lifetime posts
Is it gas or electric? Either way it shouldn't do this. You mentioned it was new, contact who ever installed it or who ever you purchased it from and tell them what is happening.

BarbaraJean

04:03PM | 10/15/01
Member Since: 09/14/01
12 lifetime posts
It's electric. We put it in ourselves, two water connections and an electical connection. That was it. It's been in for not quite a month. Just noticed the problem today.

rpxlpx

08:53AM | 10/17/01
Member Since: 03/13/00
1675 lifetime posts
Just a thought - do you have the 2 thermostats on the water heater set very high? That might contribute to the problem. I would definitely have them set BELOW 140, with the bottom one set slightly higher than the top one.

BarbaraJean

04:24PM | 10/17/01
Member Since: 09/14/01
12 lifetime posts
I think they are both set at 120. We have small children and want to be on the safe side.
We just had a new dishwasher installed. Could that be contributing to the problem somehow?

CHRIS MATTOCKS

03:23AM | 11/05/01
Member Since: 11/04/01
3 lifetime posts
your prv (pressure relief valve)has a purpose,if your water pressure is above 150 psi your valve will discharge, or you have some material stuck in your valve.
1st you should try releasing the valve 2-3 times and see if it stops dripping. if it still drips you can purchase a water pressure gauge at home depot or other hardware stores for about $ 6-10.00, hook it up to you hose bib and confirm psi (should not be higher than 85 psi. if it's higher than 85-90 psi you need to install a water pressure valve which amounts to $20-30.00.
sometimes the waterheater has a defective valve as well.
you should call the plumber who installed this unit and check to see if he checked the water pressure from the city to your home,if he didn't than have him come over and do so..

rpxlpx

04:36AM | 11/05/01
Member Since: 03/13/00
1675 lifetime posts
Frequently the new water heater does not come with a PRV and people put the old valve on the new heater. If you did that, I'd try replacing that old valve. They're not expensive or difficult to replace.

BarbaraJean

07:29AM | 11/05/01
Member Since: 09/14/01
12 lifetime posts
Thank you to everybody for your help.
We had a plummer replaced the valve, still leaked. Came back and installed an expansion tank which seems to have done the job. Didn't realize these were code now. Our old heater did't have/need one.
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