Where did you get that Harry? Thanks Dave W
I installed a Flologic water circuit breaker in the main water line coming into the house. Any water outlet running for more than 20 minutes (adjustable) and the Flologic shuts off the main line. If you go out oftown and push the "away" button, it shuts down in 30 seconds. If you don't push the away button, it will do it for you after 18 hours of no water beingused