[wagonman76]

I have had a pipe burst before in the crawl space and this kind of thing worries me. Thankfully at the time I had caught it, but had I not caught it, the whole crawl space could have turned into a pool or block of ice. I also had a pipe burst below the sink. Something I have done to keep any more pipes from bursting is to turn my water inlet valve so it is only open 3/4 turn, which still gives decent water pressure. Opened all the way and taking a shower is like driving nails into my back. I am on a community water supply at the bottom of a hill. The water main in my front yard has blown 3 times in the 10 years I have lived here.

One thing I have thought of doing is put a solenoid valve at my water inlet, and connect it to a humidity alarm so it cuts the water when the humidity gets to a certain point. One thing I noticed was the extreme humidity under the house when the pipe had blown, much more than any muggy summer day.