I have a Chapparal bow rider with the Yamaha 3.0 Liter engine outdrive that I cant get to draw water from the foot. It worked fine last summer and when i winterized the boat. I replaced the impeller due to it breaking apart when I first started the engine this spring and since then it wont draw water. Any ideas? Those water pumps for this set up are expensive. 600 bucks is the lowest price I can find. Thanks...