Connecting Canister filters to built in overflow

[b_james]

[quote=asmodeus;658134]Hmmmmmmmmm interesting I think the main concern is having enough water to draw to fill the filters. but if you have a top off and have enough water to fill the filters i can't see a problem. QUOTE]

Filling the canisters would have to be accounted for as the total volumne. Once the filters are full and the water level in the overflow set, I see the only time the water level in the overflow will flucuate will be from evaporation. If a pump is turned off, all that should be affected is the flow rate will slow down.