[schristi69]

I have been comtemplating something like that myself. That battery powered vacum? A real POS. I bought one. I was considering using the power head to creat a suction effect. You would use like a regular siphon cleaner and mount the powerhead in the hose so it would shoot water down through the hose to the drain. This should create a vacum in the cleaner section and suck up the crud. Your idea looks to be good to clean crud out of the water after blowing off all the rocks.