Doing the final cleaning of the home brewing system.  After cleaning out all of the kettles and the chiller, I fill a bucket and throw in a scoop of PBW. I enable the RIMS system and have it circulate the water and PBW in the bucket.  I bring the water temp up to about 1ooF happens pretty quickly since it is only about 3 gallons of water.  I let it circulate for about 5 minutes once I have hit my desired temperature and let the PBW do its magic.  After that I break down the homebrewing RIMS system scrub everything, reassemble and flush with clean water.