Originally Posted by neilanh
Oh, something else to consider.
I have a bubble tower in my sump, just like in your sketchup. I'm now wishing I would've done socks instead and am trying to figure out a way to rig it up without disturbing the system.
I had a 4" sock as well. It did help, but I got tired of buying them and cleaning them. Since removing it and adding more rock between water inlet and outlet, it worked just as well, I think. I have also thought about making a chanmer in the smaller return zone area that I could place a filter / spoung of some sort. That would help too.