how many times a hour should the water go through the sump?

[mr.wilson]

Originally Posted by zoaElite

Also with the advent of Biopellet reactors, Zeovit and other nitrate/ite/NH3 sinks would it not be more beneficial to have a higher turn over to supply fresh dissolved (As compared to surface) organics to these reactors?

I didn't address this point in my last post. Overflow boxes of any design skim only the thin crust of hydrophobic surfactants off of the surface. The brunt of the water is not from the surface and will contain all kinds of wonderful "dirt" for the various gizmos and gadgets.