Well I got a big tub put some water in it a few days ago with the tee shirt wrapped around it with some frozen water bottles, it was 90 for a couple of days and the temp. stayed 62 to 66. I left town for the day and stuck in some about 5 water bottles. Came home and it was showing 60 degrees. This is working better than expected!
I will let it sit and warm up a little before adding more ice. Can't wait to taste this pale ale. Software says I should have around 90 to 100 IBU's