After dropping the underbelly and seeing how shallow my BW tank was, I decided this (the Tornado) may not be the best accessory for me to install. Although in principal its a great idea, since the deepest part of my tank is only about 6 inches or so, the Tornado would be right at the 2/3's full point. Mounting the Tornado high on the tank reduces risk of a leak. The how-to video
demonstrates installing the system 2 inches down from the top of the tank. Unlike the video where they cut a 1 in hole, I'd have to cut an 1.25 diameter hole... IMO not ideal solution for my shallow 36gal BW setup.