Strider518
New Member
I just finished installing a new expansion tank (factory set at 40 psi) for my natural gas water heater. I use a Grundfos type UP 15-10 B5 circulation pump. Other markings on the pump label are: P/N 59896213 P1 and what looks like a mathematical formula: I 1/1(A) with the number .22 below it. And P1(W) with the number 25 below it.
Do I need to change the pressure on the expansion tank?
BTW my street water pressure is about 50psi.
Thanks.
Do I need to change the pressure on the expansion tank?
BTW my street water pressure is about 50psi.
Thanks.