
Originally Posted by
catchNgrease
Problem is you have a chance from either side. I used that type of check valve in fuel systems on big trucks for years. You would be surprised how small a piece of debris can hold it open. I’m not saying it would pour in to the point of worrying about sinking but could have seepage to the point of having water in bilge all the time. Another thing you need to consider, how easy or how little pressure does it take to release the water out of bilge. If you can’t pour water through it against sprin pressure the it’s not going to drain properly. I’m like G, get right plug and a couple extras is safest way.
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Charlie Weaver USN/ENC 1965-1979