The JOBO Film Washer takes the drudgery out of the final rinse no more standing there dumping and filling rinse water every 30 seconds! Place your tank in a sink, insert the Film Washer and walk away. After about five minutes, you can come back and claim your evenly washed film. (Note: If you also use a JOBO Lift, please remember to run a couple changes of water through it to clean out any residual bleach/fix to be on the safe side.)