Hmmm, I would have never thought to do that. Unfourtunately I am connecting to a faucet on a pedestal sink so there is only about 3" from the bottom of the educator to the sink. I'd say that where I drain from the tank is about 6" lower than that. The tank is in my kitchen and that would probably work in the kitchen sink, but we have one of those pull out spray faucets so there is no way to thread anything to it. When I move into my new house I am going to have the plumber hard plump a connection directly to the drain and water before it get's to the sink. ;-)