How do I clean and maintain the filter system on my Bosch dishwasher?

Remove the bottom rack, grasp the Large Object Trap/Cylinder Filter Assembly, turn it counterclockwise one-quarter turn, and lift it out. Carefully examine the assembly for debris, tap it gently to dislodge particles, and flush the Cylinder Filter under running water. To reinstall, return the fine filter to its position and turn the locking nut clockwise one-quarter turn until locked, with the arrows pointing toward each other. (Pages 22–23)