My pipes are 1.5" diameter pipes and my service factor is 1.5.

I'm not sure what the service factor tells me though??

As the above poster suggested, I think it may be a bad pressure gauge. It seems to only drop down to about 12psi when I turn the pump off and I can tap on the glass and appears to stick quite a bit. Hopefully this is easy to replace?

Thanks for the help.

Jeff