40-60 switch cuts in at 35 and out at 62. Have new pressure gauge.

I just installed a new pressure gauge, and inflated my pressure tank to 38 PSI for my 40-60 switch.

My new problem is that my switch and pump don't cut in (turn on the pump) until the pressure falls to 35 PSI. It cuts out (turns off) at 62 PSI, which I'm not too worried about. It seems like my pump runs for a long time from 35 to 62, and I'm concerned that it may overheat. I'm also concerned that the pump cuts in at a lower PSI than the pressure tank is set at.

Can I adjust my switch so that it cuts in at 40 instead of 35 PSI? Or do I need a new switch? Or should I just reduce the PSI in my pressure tank to 33 (2lbs below the cut in PSI)?

Thanks.

The pump is made to run continuously, and it is much better for it to run longer than shorter.

Some switches are adjustable, but for 5 psi I would not bother messing with it. Made sure there is no water in the tank when you reduce the air pressure to 33 psi.

It could be that your gauge is not very accurate either.

To check your gauge to high accuracy:
if you have a 100' garden hose and a multistory building at your disposal the pressure at the bottom of the hose should be 43.3 PSI, and for a two story house with the highest fixture at 20.0', the pressure at a ground level sillcock is 8.66 PSI. This is for water at 68F; at higher temps the pressure is slightly less.

If you want to simplify that, you get 1 psi per 2.309' in rise in feet, so I would use a tape measure rather than a house height to hang your hose.

Wally Hays said it best!

Wally Hays said:

It could be that your gauge is not very accurate either.

Click to expand...

. I'd try another gauge. . . but not to worry if everything is working OK.