Originally Posted by woodski
Water is not getting in via the bung as it does not leak when trailered then when bung removed it pisses out.I suspect water is getting at back of the rib where 2 stowage lockers are. There is bit of cracking around these in glass fibre which I have repaired a couple of times. When recovering divers or in heavy seas there can be quite a lot of water which drains to a sump and the bilge pump in there deals with it no problem
Thats why i am trying to pump it out below deck but cannot quite locate the pump because of limited access.
Again, you need to stop it getting in there, rather than pumping out when it does.
Working through and addressing the possible areas of ingress would be my approach.
It maybe worth taking the bung and bung surround out, checking the O ring and resealing it back in with sikaflex when the area is totally clean and dry. Replace the bung if you're unsure of its health, they're not expensive.
If that doesn't fix it, move on to those cracked boxes.