I wanted the Tornado on the opposite side of the tank as the dump, so that the water flush "pushed" towards the dump valve, and actually flushed the area that Bill Crawford spoke of, above. To do that, and still install the connection for the Tornado I had to get a longer piece of tubing than what was suppied. But now, my Tornado connection is right next to my dump valve, facilitating easy and quick connection.
Don't forget to blow this flush line out with air (or antifreeze) when wintering, or it will freeze the tubing, or worse, the Tornado valve itself (it's hard plastic, so it could easily crack if water freezes inside it.)
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter