> How about it MIck?

Shawn's can be made double ended by not transfering the water from the intake side, putting the outtake on the bottom w/ one of his oneway valves and doing exactly the same on the other side. Put a tube for the intake top to beside the bottom intake and twin the outakes and you got it. Like a two stroke motor instead of a 4. But this is only an idea and he's already built one and is pumped right now! Way to go.

When I was in the middle of drawing carts, specifically a little after "A La Cart lla", another idea occurred to me. I was driving up country late at night for Canadian thanksgiving, alone on the long road, sorta chuckling to myself about using the kayak structure for most of the cart, when I wondered about doing the same for a foot pump. This was also just after Shawn (again!) and I and some others were posting about cupped bulkheads and Bram and I had interchanged ideas about flexible bulkheads for skin kayaks. So . . . . . . . . .

Say you had no hatch, (or an airtight one). Say instead of a rigid bulkhead that you made one out of neoprene or rubber or something flexible and you glued it perfectly to the inside perimeter of the hull using some of Ian's urethane glue all to anything, you then glue on a loop of webbing for a footstrap. Then you put a (oneway valved) intake from the cockpit side thru the now huge gargantuan bulkhead pump diaphragm to the front compartment.( Put this down at the bottom and acutally thru the edge of the 'bulkhead') And put one of Shawn's one way valves out the BOTTOM of the front compartment right next to the diaphram. Why lift any water you don't have to? (ie for efficiency the outake should always be below the inner water level)

So now the your kayak front compartment is the pump body (I assume gear is in bags - yah I know not reality), The kayak bulkhead is also the pump diaphram and it is huge, Huge, HUGE. The only weight you've added is the tube and the two one way valves(couple ounces?- you need a bulkhead anyway). (Maybe add a bungee diaphragm return) And you've got the hugest custom foot pump that'll fit yer yak.

Now this is just an idea, and I'll sketch this and some others up way later. (Suffering little suryak)

But it's quite hilarious to think of how minimal you could really go. And now my idea for a structural concealed flush hatch latch has also got to be airtight too! - Oh Noooooooooooooooooooooo!!!

-mick