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

[golf nut]

Originally Posted by freezetyle

By that logic, the same amount of water would pass through the skimmer would it not?

Theoretically:
1gph=100% skimmed
10gph= 10%/gal

I dont really have a preference. As long as water gets skimmed its a win situation.

If you skim it 100% then what you return to the tank is clean, if you skim 10% of it then 90% of what you return is dirty or unskimmed, why would you do that when it costs more money in hydro and pumps to do worse?