Good Aquarium Pump for Immersion Chiller? - BeerAdvocate
Aug 14, 2012 While my pump is 1056 GPH, its nowhere near that fast because of the 4-5 feet of height between the pump and the top of my immersion chiller, so despite its high flow rate it only pumps out about 25 gallons of water in the 20 minutes it takes to cool my 10 gallon batches compared to the theoretical output at zero lift of 17.6 GPM.
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