hot water build up in water system

DT plumbing · Mar 31, 2009

Hello Everybody;
This Is Derryn the plumber with a question
I have a customer that has hot water build up pressure
I have installed a new PRV, The problem still exist
Should I install an Expansion tank on the HWT
I am wondering if this will stop the problem
dtvansickle@hotmail.com
Thanks Derryn

SewerRatz · Mar 31, 2009

DT plumbing said:
Hello Everybody;
This Is Derryn the plumber with a question
I have a customer that has hot water build up pressure
I have installed a new PRV, The problem still exist
Should I install an Expansion tank on the HWT
I am wondering if this will stop the problem
dtvansickle@hotmail.com
Thanks Derryn

If there is a PRV on the system you must have an expansion tank.

Sponsor · 2022-01-29T12:20:58-0800

hj · Apr 1, 2009

pressure

The pressure should build up in the entire system, not just the hot water, unless there is also a check valve on the line to the water heater.

Seaofnames · Apr 4, 2009

You are a plumber and you dont know you need an expansion tank after a PRV?

I'm sure you could have done some more trouble shooting before asking here!

hot water build up in water system

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