Daveineugene, If the distance between the bottom of the deck
and the waterline is adequate for proper feeding of chain and rode
, you can fill the chain locker with spray foam to just above the waterline, smooth it and glass the surface, then drill a pair of holes, 1" in diameter, at the outboard
sides of the hull
to drain the seawater. Then it doesn't matter, as much, if water comes into the chain locker. It also keeps the stench of hydrogen sulfide, from dying microbes, from smelling up the bilge
. But this will only work if you have sufficient vertical space for the chain to fall and settle securely.