Thanks for all the replies. I will post pics later tonight or tommorow or something. I know it must be difficult knowing what I mean without pics so I am sorry about that.

Regarding the conduit clamps, wouldn't that mean I would have to pull the entire conduit out by moving it up towards the ceiling through the top clamp, the conduit which is as tall as my entire rack, each time I even want to open ONE tub? I may have misunderstood but if that is what you mean it kind of makes it very difficult to use, and wouldn't your rack have to be only half as tall as your ceiling in the room? Otherwise you can't slide the conduit out. Also, having a column blocking the middle of the tubs would still allow the tubs to rotate so a corner is pushed out?