Ok, have a spike cf30 mostly do 10 gal batches in it. Have the spike tc100 setup cooling coil , pump and insulated lines. Did a little experiment where I put a 5gal bucket full of water in my chest freezer, stuck the pump in and hooked it to the coil. freezer temp was set to 40 degrees. Last nite I dropped the temp controller on the tc100 to 45. Checked it just now and it dropped from 67 last nite to only 64. Hardly the drop I was looking for. Temp in basement is currently 77. Any ideas? Or does it take that long?