"Simple Simon" wrote in message

| I have no thru-hulls for engine cooling water in my
| hull. My major concern is to allow water OUT
| when it's convenient and NOT to let water in
| when it's not.

putt... putt... putt
putt... putt... putt

putt... putt... putt

putt... putt... putt

putt... putt... putt

putt... putt... putt

cough... sputter

Sounds like an outboard....

CM