I have a ski boat, it's a modified V design, basically a center keel, a tunnel on each side, and then sponsons outside the tunnels. I have a standard electric bilge pump in the center keel, but cannot fit pumps in the sponsons because the gas tanks are there...there is about 1" or so around the tanks. This is a low profile boat, so I'm constantly taking water over the side and the sponsons fill up with about 5 gallons each. I've been getting most of it out with my kid's squirt gun, but it's a pain.
There exist diaphragm type bilge pumps that I can use with a hose that are self priming, but they cost quite a bit.
I had an idea to try and use a venturi style vacuum pump driven by water, rather than air. The plan would be to put a water pickup on the transom that should produce reasonable pressure with no real drag whenever the boat is on plane, then run that into the boat, through the "pump" block, to create a vacuum to draw water out of the sponsons and squirt it over the back of the boat.
I have one of the Harbor Freight pneumatic vacuum pumps, but last time I got liquid in it, I don't remember it working very well. Is this a stupid idea or does it have a chance, however slim, of working as planned? any tips?
There exist diaphragm type bilge pumps that I can use with a hose that are self priming, but they cost quite a bit.
I had an idea to try and use a venturi style vacuum pump driven by water, rather than air. The plan would be to put a water pickup on the transom that should produce reasonable pressure with no real drag whenever the boat is on plane, then run that into the boat, through the "pump" block, to create a vacuum to draw water out of the sponsons and squirt it over the back of the boat.
I have one of the Harbor Freight pneumatic vacuum pumps, but last time I got liquid in it, I don't remember it working very well. Is this a stupid idea or does it have a chance, however slim, of working as planned? any tips?
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