Paul Schilter wrote in
:

Larry,
Could you drill a weep hole in the bottom of the plastic?
Paul

I'm sure that would void any warranty to get the 4th replacement. They
specifically tell you to insert this rubber plug with the 3/4" drain tube
hanging down so splashed rain or salt water can't get through a tube you
describe.

I'm for sealing the whole thing up tight with 4200, so we can still get it
apart. But, that would void the warranty, too.

Raymarine says they have this trouble in "some climates"....whatever that
means.