My tanks are a 40 and a 180 sharing a sumpHow does that work? I've read about it on the forums. I'm just not sure what it means.
I have a 3 stage cartridge filter (sediment and 2 cto carbon inserts) running from a water hookup (split from my washing machine water lines) with a 40 GPD restrictor in line. Water runs into the main tank and the sump is drilled for overflow at the running water level of the sump. The overflow from the sump runs to a floor drain.
I use a mixing valve at the water hookup to run tank temp water into the tank, but lots of people dont.
I use pool filter sand in the tank so nothing settles in like it would with a gravel bottom. I also have a lot of current to sweep debris into my canister filters and filter socks.

