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Old 09-05-2014, 07:25 PM   #11
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Thank you. I didn't add anything but tap water last time, and it got smelly and moldy.

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Old 09-05-2014, 08:54 PM   #12
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I put my 6 gallon carboy in a large cooler filled with cold water and have been rotating 2-3 bottles of ice every 8-10 hours while I ferment a California common. Ambient temp is about 70 degrees and the water has stayed pretty steady around 60 without much trouble. It's a pretty cheap and easy setup that in my experience is more effective than a swamp cooler.

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Old 09-05-2014, 09:11 PM   #13
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Before acquiring my modified under-counter freezer I used an automated swamp cooler. I would place the carboy in a large bucket of water with a towel wrapped around it. Your typical swamp cooler, but to regulate evaporation I controlled a fan blowing over the towel with a solid state relay and PID controller. I used a 24" stainless thermocouple probe to measure the fermentation temperature directly. It worked well but you are limited on the cooling capacity.

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