it’s usually printed inside the plastic cover of your old switch. You should also buy a new pressure gauge and a 1/4-in. by 6-in. galvanized nipple. Flip the breaker to the pump switch and check ...

Judging from this first project, a DIY pressure plate switch, we think there’s going to be a common theme to follow. [Rich] constructs his pressure plate for almost no cost using cardboard ...