Be very carefull with the hose that pulls the water out. If you hook up the screen that provided with the overflow, it has a tendancy to produce a lot of air bubbles... many of them getting caught. I have a REO 800 pulling the air out, but it came loose while I was at work. When I came home, 40 gals of water on the floor. I still like the overflow, but it is constant maintance making sure the hose is clean and still attached.
David