Quick Q about sealing?

[justneedspeed]

I just built my first catamaran and was wondering since it has one motor how do i seal around the brass tube where it exits from the under side of the boat? Thanks in advance.

[ReddyWatts]

This is what I have been doing to stop the water from entering the hull from the tube. Using heat shrink and a rubber grommet or a piece of water tubing. It is not the conventional method with a prop shaft seal, but it works for me. Hulls stay powder dry.

http://forums.offshoreelectrics.com/...6&d=1183425586