Hi all. The beer cart relies on ice in a home made bucket cooler. On a hot summer day we get about 1 day out of the ice. We looked at lots of different cooling methods (reusable cooler packs, refridgeration etc.) but in the end it seemed like a bag of ice was the simplest and perhaps the best.
Needless to say the beercart is the most used of all the brojects thus far!