I'm replacing the pump stack on a booster pump that was damaged from running dry. In order to hopefully prevent this from happening again, I'm wanting to put in a pressure switch. But I don't know what I am looking for to make sure I get something that will work. I need a switch that will turn the pump on when there is flow through it and will turn it off when the flow stops. The pump is basically used as a pressure washer so is there a way to keep the pump from cycling off if the sprayer is stopped for short amounts of time? Would a normal pump shutoff switch of 30/50 or 40/60 work in a situation like this - placed on the line leading directly to the pump? Or are there switch specifically made for something like this?