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

[mr.wilson]

Originally Posted by StirCrazy

ok, not exactly but implied now that I read it again. by sayign skimm it 100% while you are talkign about the lower flow you are saying that the skimmer is 100% or close to it efficient.

Steve

MrOm's comment makes perfect sense to me and I can't see how he infers anything about the efficiency of the actual protein skimming device.

I don't know why you keep trying to change the focus of the thread, which is throughput for a sump.

If you stop at a gas station and fill your tank to the top with 50 litres of gas, then proceed to overflow another 950 litres of gas (20 x the amount needed) on the ground, where does that rate on the efficiency meter? Would you do this if you read it in a book? Would you reconsider the practice if someone offered you irrefutable proof that it isn't necessary?