I am in the process of trying to figure out how to design my new hop back.
Ted, i like the idea of not having to be pressure rated, just for the sake of cost. Have you used this type of design? I wonder about setting it up as a loop where the spinning wort is passed through the hops during whirl. It would seem to have to be a closed vessel for this type of process.
FOr our 20bbl system, I was thinking this...
Wort pump --> Hopback --> strainer --> H/E -->FV
A hinged top 80 gallon stainless steel 'bucket' on castors, with a top mounted 1.5"TC inlet and just under the screen basket(with handle for removing) a 2"TC outlet.
I would love some input from those using hopbacks.
matthewbrews @ gmail (dot) com