I use one as a swamp cooler in my basement and add an aquarium heater when neccessary. I made a foam top for it bit it's not really neccessary. I'm actaully going to use it as a BIAB hybrid mash tun on brewdays too.
Ataraxia: Freedom from pain in the body, and trouble in the mind
Bottled: House Pale split US-05/WLP 400, Cottage House Saison
Fermenting: American Hefeweizen, Small beer with 3rd runnings of Hefeweizen
On Deck: Wit, Skeeter Pee