I live in FL. Tap water temps alone are not enough for me to chill to pitch temps.
I have multiple chillers, and what I find works best for me is, a large immersion chiller with pump recirculated wort.
I am rather surprised that for extended, up to one hour chilling, that your tap water remains at 85°. I'm further south and my tap water is usually below 80°. My goal in using the immersion chiller is 80°. If I want to chill further, I will often just transfer to fermenter, and put that in my ferm chamber overnight and pitch the next day.
I have tried the Lonny Mac method, recirculation through a plate chiller with an ice water bath. This clogs the plate chiller though.
I've taken that plate chiller and used an ice batch to run off the wort into the fermenter, and I've been able to achieve satisfactory results most days in hitting a pitch able ale temp. I now have the copper CFC from more beer an with this one, I can recirculate with using an ice bath, but usually I would pre chill with the immersion chiller. I'd prefer that more beer unit over the one on eBay there. No brass. The 45-60 minutes it takes me to get near 80 allows clean up time.
TD
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