| Folks,
Also keep in mind that this mod is typically for "venturi" type pumps. If you are using an Aqua-C Remora, for instance, it has a patented "air injection" system that does NOT use a venturi. In this case, the air is blasted into the water chamber and the impellor does NOTHING with the air. The pump and impellor only work to bring the water into the skimming system. With that said, modifying the pump (typically a maxijet) would be useless.
Dave
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"Fins to the left...Fins to the Right, I'm going home to play with my reef tonight..."
If you're looking for me, and I'm MIA from the board, email me at JustDavidP (at) gmail (dot) com.
Experience in aquaria, 35 years. Experience in marine, 20+ years. Experience in Reef Keeping, 6 years. Always a newbie! | 
