Quote Originally Posted by JoshSloane View Post
You don't want the probe in a tub. You want it directly up against the heat tape so that its directly measuring the heat coming off of the tape. Do you have one solid piece of flexwatt or multiples?

Youre going to have fluctuations in temps between tubs on the top and bottom. When I had a melamine rack my middle tub was at around 89, four rows up was 93, bottom tub was around 87.
It's one solid strip of heat tape. It looks like the middle is the hottest, surprisingly not the top. Our rack is only about four feet high. I suggested to my partner taping the probe to the tape and trying that instead. Thought about moving the tub to the top of the rack or to the middle (it's fourth from top right now, with 6 rows total).