Possible Frozen Pipe
| Actually, sometimes it does. I've seen pipes split with the water
| turned off and the tap open. If water pools in a low spot, totally
| filling a sizeable section of pipe, it can split - and it can split a
| second low spot a day or two later.
It sounds like you've got some 3 Stooges pipes,
turning down and then back up again in an exterior
wall.
|