Hi y'all, just finished my cf chiller. It is 35', 1/2" inside 3/4" cu. tubing. I capped the water outlet and put water pressure on it to test my solder joints and all looks good. I plan to heat PBW and hot water to flush the 1/2" interior lines to get rid of residual flux and who-knows-what that might be in the cu. pipes. Just wondering if there is anything else that I should do to prep the lines prior to brewing. Thanks, I'll post a picture of my abomina-chill when it is finished, if it works.