2

I just got my $25 solar pump working and it can only do 1.7GPM. I poured water equal in amount to that which is normally in my kettle after boiling, turned the pump on and it did not come even close to that which I do by hand for 30 minutes during the cool down period.

(Update - I tested it out tonight. By hand, it takes 30 minutes to chill to 72F. With the 1.7GPM pump, it took 37 minutes. I was expecting it to be much worse. Hopefully this does not imply that I am only 7 minutes stronger than a 1.7 GPM pump!)

(Update - I'm definitely doing something wrong. The last 4 batches have taken 45 minutes to cool the wort down to 72F. Perhaps there is a better way to angle the outlet hose which I haven't figured out how to do yet with sanitized rubber bands)

I see that the Chugger has 7 GPM, and know that people use it successfully for wort recirculation.

US Solar has a 3 GPM pump on Amazon for $70.

What is the minimum GPM required for a reasonably efficient pump used for wort recirculation?

  • I have not used a pump (yet), but be warned that too strong a pump will increase tannin extraction. – Atron Seige Feb 16 '15 at 12:11
1

This BYO article on how to build a recirculating wort chiller should help with the mathematics of your situation; the calculations should work equally well for wort or water.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.