Can you elaborate on the swamp cooler?[/quote]
Sure! You can search the forums for other ideas but… I fill a large rubbermaid bucket, large enough to hold my fermenting bucket, with cold tap water to just above mid-way up the fermenter. The water stays a fairly constant temperature (for me about 60 degrees) and keeps my fermenting temps in the mid 60s. I only need my swamp cooler July through mid September here in NJ…
If you can’t keep the water temp low enough you can add frozen water bottles to the rubbermaid bucket, and soak an old towel in cold water and cover the fermenter (which I haven’t done, but I’ve read some folks in Florida have had good results)… you may not want to cover the ferm lock though.