In article , Jud McCranie wrote:
On Tue, 09 Nov 2004 16:17:40 GMT, (Doug Miller)
wrote:
e. Pump air into the tank until you have about 2 PSI -BELOW- the
cut-in pressure, i.e., if pump starts at 30psi, you want 27-28 psi in
the tank.

I just repeated the process (in daylight this time) except that I
pumped air into the tank. I was only able to get 11 PSI in the tank
before putting water back in, but that should be better than what I
did last night, and it will hold until we can do something about the
tank. Of course, putting water back in compresses the air in the
tank, and now it is at 44 PSI. The pump cuts on at 42 PSI and off at
57-58 PSI. Are those pressures OK?

That depends. When you open a faucet, does the pressure drop to 42 psi,
causing the pump to kick on? Or is 44 psi as low as it gets?

If 44 psi is as low as it gets, you need to either (a) let some air out of the
tank, or (b) raise the cut-on setting to 45 or 46 psi. Otherwise, with the
cut-on pressure set below the minimum pressure in the tank, the pump won't
ever come on.

Or if you're asking if on at 42 / off at 58 is an OK combination of settings,
sure. As long as you're happy with it. The "proper" on/off settings are a
function of the capability of the pump, and your personal preference.