| I replaced the impeller with a needed wheel on an aquabee pump. It is close to a RIO as you can get. I then glued a 3 or 4 inch piece of pipe sticking out from the suction to the mounting nut. I then drilled a hole right past the nut, about an inch or so. I inserted and glued an airline piece of ridged PVC, it was real small, then I slipped on a piece of tubing which I ran up to a small air valve. Basically I made a ventury that sucked in the air. while sucking in the water. It worked well for the time.
__________________ Scott Ardoin (Ard-Dwan) |