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

[golf nut]

Originally Posted by banditpowdercoat

Exactly. But, one does have to consider tank flow if it's enough to maintian detritus in suspension so the low sump flow can take it. Most have that taken care of no problem. Some, however use sump flow as a contributor to overal tank turnover. If you don't get the crud from the tank to the sump, it doesnt matter what flow the sump/skimmer has.

Hey Dan, every single post I have ever made regarding this has been precluded by the statement that "if the flow in the display is enough" what part do they miss.