Copper pipe to a valve under the kitchen sink.
PVC from the valve running under a sun room and to the wall of the
Another valve at the wall, and then maybe 20' of PVC out into the yard.
Valve under the kitchen sink leaks so even though it's shut off, there
is water in the PVC over the winter and the outside PVC bursts.
Drain the system by turning off water at the meter and opening the
lowest faucet in the system.
Replace the outdoors PVC.
Turn the water back on again.
Leak in the valve under the kitchen sink appears to have stopped. Came
back to the property two days later, figuring maybe it's so slow that
the PVC took time to fill up... but nothing.
Can anybody postulate a likely cause?