thanks for the help guys and girls!

One more question. when you say you lower the heat tape to 82, do you mean lower it so the actual tub temp on the hot side is 82? On my RBI rack, that would mean dropping the flexwatt thermostat to like 87 degrees.

In other words, to achieve a tub floor temperature on hot side to 89 degrees, I actually have the flexwatt thermostat set at 94... so I should drop that to 87? Am I making any sense here???!!!

And for how many hours should the temperature be dropped.

Mike