Join Date: Dec 2004
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Re: Decommissioning through hulls?
I think I would plug it as you are thinking but leave the valve open after it is plugged and exercise it open and shut occasionally. If left shut the downstream side will likely fill with water due to seat leakage and there is a slight possibility of overpressure with temp changes or damage due to freezing. The properly installed plug (tape or pipe dope on the threads) will not leak inboard and is plenty strong - likely stronger than the hull.