Grit dog wrote:
At least just turn off the water. Then if you happen to pop a waterline,'it's only a small leak not a swimming pool in the basement and a huge water bill.
X2. I have a well pump (shallow well siphon in the cellar) and I have a flow valve on the output side of the pump. I close the valve, cut the power for both it and the water heater, leave the thermostat at 50 and hit the road. We've lost power for a week, once, and the house stayed warm enough from solar gain that nothing froze and that was in January.
I thought about getting one of those "early warning" systems, but, the end result is that a frozen/ruptured pipe would wind up waiting until we got home anyway...don't need the added angst of something that I can't do anything about and it can't damage anything with no water pressure.