Brewed my first batch today, all extract IPA with steeping grain and 3 hop additions. Things went well, read no boilover, until time to chill. Ambiant air temp was 83, water from faucet was 72, wort was boiling. Initial cooling was quick to about 100 degrees, the last 22 degrees down to 78 was forever, total time of 50 minutes, too slow. I am thinking of building a "pre-chiller" out of copper tubing to immerse in an icewater bath in the sink before water gets to chiller in brewpot. I'm thinking if I can get initial water down to the upper 30's to low 40's the heat exchange will occur within 15 minutes. Anybody tries this? Thanks.