I consider the CIP a soak with less material and a bit of force. I've never had a situation where I thought the solution needed to be stronger, sometimes run a bit longer but not stronger.
Rinse off vessel or surface to get rid of as much soil as possible.
Dissolve 1-2 ounces per gallon for kettles and 3/4 ounces per gallon for fermenters, kegs, tanks, and other equipment. (May vary depending on soil load)
If circulation cleaning, heat to 130°-180° F and circulate for at least 30 minutes.
If soaking, heat to 140° and soak for 4 hours or allow to soak cold overnight.
Rinse surface or vessel.
I am doing 30 min at 135F with about 1 ounce per gallon. I'd like to get a better CIP pump that can handle higher temps. My sump pump is rated to 120 F but 135 doesn't seem to trip it's heat sensor.
I don't let things get too far before a hot pbw clean-out, so 1 ounce per gallon holding at 150°F for 30-40 minutes has been leaving everything super clean (especially pumps and valves). I just wish it would take more of the color out of my mash recirculation hoses