I read in another forum that a lady in Flordia or some southern state (could I be more ambiguous?) was having problems with her chiller cycling off an on...Her solution was to get rid of the chiller and freeze several 3 liter bottles of water. When she would notice the temp rizing she would place one or two bottles in to reduce the temp. That and a small fan blowing on her sump, she said, did the trick.

Thoughts?