> 1. I am thinking of mounting it flush on the hatch side of the bulkhead
> with the intake hose and foot cylinder coming through holes in the
> bulkhead. Clearly this creates issues on how to keep the bulkhead
> watertight.

I think this is the best place of all to mount the pump as well as the outlet. It keeps them out of the way under scrambling panic conditions. You'd hate to kick off the outlet from the inside! If the Guzzler has a flat flange sealing with neoprene or silicone sealant should be fairly straight forward.

> 2. The intake and outtake are 1-1/2 inch diameter. I wanted to make the
> outlet hole in the deck as unobtrusive as possible and would potentially
> like it to have a smaller diameter. If I step down the outlet to 1"
> diameter or smaller will I reduce the effective capacity of the pump or
> just make it harder to pump.

Others can answer this but why not just do a test before mounting? Furthermore why not consider exiting the tube at a sharp angle so that you get a flattened oval outlet (rather than a 1 1/2" hole) that is no wider than one of the 3/4" strips. Another idea is to inset the hole and rubber mount a cedar strip flap so that you cannot see the exit but in use the flap bends out of the way. (Use firm rubber and you get another one way valve! - well, maybe.)

> 3. The pump has a check valve where the water exits the pump. Do I need
> another check valve in the deck to keep water out.

If it's a spring check valve you're prob ok but I don't know the pump.

> 4. Any thought about the best location on the deck for the exit hole. I
> thought about running a hose to the rear deck so the water won't be
> blowing back in my face as it exits. The logistics of running the hose
> back there seems like it won't be worth it. I remember some discussion a
> while back on placing an exit hole at chine level so water squirts out to
> the side.

The longer you run the hose the more potential damage it can get. Theoretically, you should be able to place the exit even in the hull although someone earlier pointed out that the outlet could get damaged and cause problems when you scaaaape over that barnacle covered reef. I think it therefore would be most prudent to keep it above the waterline

> 5. What kind of tubing is best for this. I have seen Clear flexable PVC
> Tubing and the corrugated VAC tubing used on pumps. I assume the
> corrugation helps the tubing bend around corners without crimping.

> 6. I currently have a minicell bulkhead temporally mounted in the front. I
> will need to replace it with a plywood version. Should this bulkhead be
> made of 1/4" , 1/2" or 3/4" plywood. I would guess that the
> forces produced by your leg on the bulkhead are large. Particularly when
> you have capsized and the adrenaline is pumping as fast as you are. Should
> I put a layer of glass on it before filleting it in place or just coat
> with epoxy.

I'm not too sure about this but what about just glassing both sides of your minicell bulkhead(I'm assuming compatibility), after running the inlet into it. Or flank it with 1/8" or 1/4" ply both sides - at least it would be stiff.

> Thoughts or ideas around any of these issues would be appreciated.

> Jack

I would appreciate hearing your progress on the pump installation as I'll be following your footsteps later.

- mike