Originally Posted by tonyz
Hmmm, I think we're on to something here. How about a water shut off valve (solenoid style - cheap and 12v - easy conversion to 9v w/ a condinser) with a switch in the trailer as you exit the door! Found another winter project to work on. Maybe a 9v remote switch for the solenoid
Side thought, guess those could fail too and flood the earth, better just train myself to remember to tuen off the valve
I had this same thought several years ago but you would want a solenoid that doesn't require power to keep it energized one way or the other. I suppose it wouldn't be a problem if you had hookups but I don't want something draining battery power when I'm dry camping.