No thats fine but I honestly think a monster pump would be too strong and cause issues.

See when we discussed recirculating the waterfarms the big issue was how strong of a water pump to use to prevent overflow since the entire gravity refill thing is so slow. You cant use something faster than the refill time right? That's why a cheapie 10 gallon fishtank aquarium pump is so perfect......small pump so keep things moving nice and slow which is HUGE when trying to move water along through all those buckets.

Capice?

Seriously the principal behind is exactly the same as the drip ring. You know how the air pump forces water up through the drip ring? Well it does the same thing inside the rez if you hook it up to an intake tube on your rez (then a seperate outtake tube to refill modules.) It pulls a bit of water in the rez from the inlet line and forces it up and into the rez. The suction created refills it from the other side.

It's quite brilliant really and I wish I could explain it better. We're modifying my other res tomorrow so we'll try and take some photos as we go to try and explain it more clearly.