The easy way to fly sparge is to use another cooler for your hot water with a spiggot. It will be within 1 degree at the finish of an hour. I like to start with 185F water from the HLt or boiler, mix, recirculate, start drain and maintain 1 to 2 inches above the grain using the 168F to 170F water from the cooler. This way you are much closer to the 168F right from the start of the drain.
Fermentor 1: Bill's House Ale II, Fermentor 2: German Helles, Fermentor 3: Bill's Schworzbier (Black Bier)
Tap 1: Bill's House Ale II, Tap 2: German Hefewizen, Tap 3: Nut Brown Ale
Future Brews: Stone IPA Clone, Blonde Ale, Budvar Clone, Newcastle Clone
New toy: Blichmann 27 gallon fermentor
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