Has anyone built a moisture trap with a float switch to shut off your vacuum pump? I have a whole house filter housing hooked up with the racket ball in it but would like to have a switch installed to shut the pump off. I'm running a delaval 76 pump on a three horse motor with 1 1/2" line. I would like to know what parts you are using and how you hooked it all up to make it shut the vacuum pump off.