I recently set up my 220 dual overflow and went a bit extreme with the placement of my fluidized barrels... i noticed the full siphon is supposed to be on the gatevalve but it seems to leak everywhere when I put it on it so I switched the two, is this the reason the durso has very consistent gurgling noises? I sat below the tank for 3 hours last night playing with valves attempting to find the quiet spot which I never achieved. Is it possible I need to run all 4 bulkheads as drains? The pump is a pondmaster proline 6600, possibly need a manifold as it is going to be used for other projects as well. I hope the plenty of pics will help!
Tank is quite cloudy due to the stir up in a dusty room in the basement.
























