I've had water in one rudder on each of two catamarans. Obviously you want
to get it out, but if the boat is hauled when freezing temperatures are
possible, it is more imperative to drain it. I drilled a small hole in the
side of the rudder to drain . Plugged it before launch.
The rudder post on my current boat is pipe, so I drilled holes from the
leading edge of the rudders through both walls of the pipe to drain. Plugged
the outer hole before launch. Now I can drain any water in the rudders with
a tube inserted down the rudder post, even with the boat in the water.
I was told the same thing that Bruce was, that it is difficult to get, or at
least to maintain a perfect seal to the metal post.

"Justin C" wrote in message
news:6f4a.49e2509f.95b5@zem...
I've looked at a boat today, and the broker mentioned that the only
problem of which he is aware is that there has been water ingress to the
rudder. This is a long-keeled boat with the rudder attached aft - top
and bottom - to the keel; the kind that just has a small opening for the
propeller. The boat is of solid GRP construction - no sandwich or core,
though I'm guessing that, in the case of the rudder, it's not just a
void.

Has anyone here experience of water in the rudder? What are the
implications of this happening?

Thank you for comments and suggestions. Any references to online
material will also be gratefully received.

Justin.

--
Justin C, by the sea.