Rack wiring/rewiring question.

[brainman1000]

Only way I see this happening is ... with 2 controllers ...

That, of course, is a given. What I was getting at is that the tubs that have to be maintained at 1 temp can all be wired in parallel and connected and monitored by one controller.

Basically, each separate temp requirement will require a separate temp controller. They can exist in the same physical rack and be wired separately, or they can be separate racks all together. I probably should have elaborated a little more in my first post.