Quote:
Originally Posted by JGibson
The push/pull valves pop into the closed position when pressure is too high which is probably because of the expansion tank failing.
Why would you remove this layer of protection?
You can’t always count on the safety relief valve to work if the pressure gets too high.
In fact the push/pull valves engaged before the safety relief valve released when my expansion tank failed.
Also, it may be the local building code to have these types of push/pull valves installed on these systems. I’m not 100% on this.
I would just replace the hose and push/pull valves every 5 years. It's not that expensive but a hot water heater exploding will be expensive.
If you do decide to swap out the push/pull valves test the safety relief valve once a month as they have a tendency to stick.
It would be nice if they put actually pressure gauges on these hot water heaters. Cheers.
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If a push-pull valve closes due to high pressure, it will alert you to a possible problem, but it won't relieve any pressure. These valves are not designed to close at any particular pressure, or to perform any safety function. They are just shut off valves. And, they are not required by the building code.
The safety relief valve on your water heater is designed to open when the pressure exceeds 150 psi, which is a pretty high pressure. I would suggest buying a pressure gauge for 10 dollars from Amazon, so you can measure your house water pressure by just screwing it onto an outside hose bibb.