I used a whale water pump, I think designed to pump water out of taps in caravans it was about 6" long and cylindrical.
It sat loose in the space next to the depth sounder and shifted about the same as a good flowing tap. It had lasted/worked for 4 years prior to the boat being stolen and I was very pleased with the way it performed.
The Hose,I brought up through the drain hole in the hull next to the transom,then over the back. The hull was sealed,so the only water it shifted came from people getting out of the water and into the boat,as previously mentioned it was switched through the dash via the access between the seats it became the norm to empty the hull just prior to pulling a monoskier.
On thinking about it, this was all in fresh water I have no reason to believe it would be any different in the sea, be feel it I should mention it.
Originally Posted by Nasher
Are you saying you had a bilge pump in your flooding hull?