How do I fill the rinse agent dispenser, and how long does it last?

Unscrew the dispenser cap and add liquid rinse agent until it reaches the FULL line on the tip of the cap, then replace the cap. The dispenser holds 4.5 ounces, which should last about 3 months. If you accidentally spill rinse agent, wipe it up immediately with a damp cloth, as leaving it can prevent your detergent from working properly. (Page 6)