ok that makes sense somewhat. I bought a Special through bulkhead plug for my thermal couple. I cut the wre added the plug and female end. Also i am using the 4 in probe. i had a 2 inch but it was to short, my temp proble is mounted through a t fitting and into the HLT. I recently added a pump to my system and it mixes the hlt thoughroghly. My control mox is sealled, looks like i need a fan or something.
the small pot is the HLT, you can kinda see the thermalcouple where the sight gauge is and on my control box is my thermal couple plug