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I am rewiring my system as my automated controller died, to a PID system. My valves (8) are all 3 wire design with one wire to positive and one to common (gang wired). The third wire went to the controller and I do not know whether it needs to be common (ground/negative) or to positive. Advice...

My DX1 BrewTroller died last year and I am looking for a replacement. I thought it was going to be the BrewPi Sparc, but after talking with Elco that may not work for my set up. I have two brew chambers, upright freezers with Blichmann sanitary (triclamp setup) 14 gallon fermenters with a...

I bought 2 15 gallon whiskey barrels for aging beer and have a couple of questions. How many times can you use them for aging beer, and are there general guidelines for maintenance of them? Thanks in advance as I just finished aging a black IPA (8.7 ABV). MIKE

I am converting the above to a keezer with a Johnson 419, later to a coffin keezer. Just a couple of wiring questions. For the alarm just cut the lead to the speaker (but keep the 9 volt battery in)? Johnson settings are no issue. Also I would like to keep the inside light fully functional...