I did not even think about an inflatable plug. That is a great idea.

I would not try the wrap on an open end 3" pipe. Only on a small seeping crack. Not ideal but I've done it in a pinch several times. Where I was not sure it would work for him is where the crack is located. Wrapping a small linear split over a round pipe is one thing. If the split is on a recessed surface in a bad place on the valve, success would be more difficult.

John

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