: Most rotomolded kayaks use foam bulkheads, can't attach much to them. I think
: I'd put the pump in the rear compartment and run a suction hose thru the
: bulkhead (I'm assuming the boat has a rear hatch). I've seen several boats
: with PVC tubes with holes in it running along the centerline of the bottom
: (you could silicone it to the bottom) as a suction device.

: Don't know about the battery, I'd try it out of the kayak first.

: Bill H.

Thanks Bill,
You've given me an idea. I guess you could simply push a pipe from the back compartment along the centre line under the seat, or from the front compartment through the front bulkhead, and let it extend into the cockpit. It wouldn't have to extend beyond the seat or front bulkhead, only go through it.
The only problem remains how to contain and fix the set up. I'm not sure that he has a foam bulkhead, but even if he has I can always glass one side of it and let the bolts protrude through it back into the compartment.