I figured it would take less water this way to get the same result. I was going with the drip system, but i would have to run more water through the tank on a weekly basis to achieve the same thing.WolfFisho1;1569698;1569698 said:i think its too complicated u coulda gotten by by just having an over flow and a slow drip into the tank from a faucet so that it'll fill up the overflow and that will put it down the drain! but if u have an overflow in ur tank for a sump then u put the overflow in the sump!