The Jobo cpa-2/cpp-2 manual says to rinse for 3 minutes after
bleach and 5 minutes after fixer. It also says the number of
water changes is important and recommend changing the water at
30 second intervals throughout the rinse period. They also note
that a rinse should not be inserted between developer and
bleach, as doing so may increase contrast and density. Lastly,
it says to use the stabilizer out of the tanks and reels or
processing contamination will eventually result.