Peer. I moved all my plumbing around a lot. Royales have two tanks. And that was what I had. If you had just one tank. Two tanks will give you more flexibility in were the drains go into the tank. ( As a side note. Don't forget the tank venting. ) I got both my tanks from Jim K at Applied. I was extremely please with the construction of them both. Came with no holes in the top. That worked well. I drilled the holes as needed. Installed the rubber inserts. Then shoved the PVC pipe in. No need for glue. To hang the tanks. I used 1" by 1/4 Aluminum angles across under the tanks. Drilled holes in the floor. Then used carriage bolts to hang the angles. Did counter sink the carriage bolt heads. This all worked well. As I could still move the tanks some if required. Bob Dunahugh 78 Royale Mouse House