A bucket of water and some ice from your freezer. You set the pump (if you get one with a pump) in the bucket with water and some ice (optional) and just circulate the ater.

On 05/23/2016 05:15 PM, PT Ferrance wrote:
Has anyone figured out what it is going to cost in water to cool this unit for several hours while it is running? Mine runs with a fan.
PT

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