Originally Posted by catamount
Wait, don't give up yet!!
In Richard Henderson's book, "Understanding Rigs and Rigging," he shows a diagram of something similar:
1. a balloon to fill the mast and block it off
2. poured closed-cell foam on top of the balloon to level it off
3. poured epoxy over the top of the foam.
The foam and epoxy are done with the boat healed so that the top surface is sloped to promote drainage, and this is done at the level of the lowest halyard exit, so no need to drill extra holes. Make sure that the conduit for you wiring extends well above the block.
I have not done this (yet) myself, so I can't comment on how well it works.
That will not work either...
look I have been looking at this problem for over 25 years now, ok??
Unless I am really stupid, which may be the case...THERE IS NO SOLUTION THAT WORKS...IT WOULD HAVE BEEN INVENTED LONG TIME AGO....water will still find its way on the outside and the mast foot cover leak by...
If you do it just bellow halyard exit....most boats have all electric pass well bellow that.....
And Martha Stewart type fixes only work for a week...but go ahead..do it