Puzzling Plumbing Problem
A few years back I installed a regulator in the city water system intake to control water pressure. I also installed a pressure gauge to set the regulator and to keep an eye on the pressure to see if...
Forum Discussion
Dutch_12078 wrote:JimK-NY wrote:
We have still not heard from the OP about the use of the water heater. If you heat cold water, the pressure will increase greatly. In fact, when I do this, I turn off the pump and open a faucet, so the pressure does not build as the water heats.
The water heater maintains an air pocket that compresses as the water expands. There's no reason to turn off the pump or open a faucet. RV's that are equipped with an accumulator tank have even more capacity for expansion.
Oh, and water heated from 70 deg.F to 212 deg.F only expands 4% or about 2/3 of an ounce per gallon before it vaporizes.
It is very common for people to LOSE that air pocket. You must restore the air pocket. Also, the usual product of no air pocket is increased pressure and the Pop Off valve starts leaking. Doug
