How much rinse aid does the dispenser hold, and how often does it need to be refilled?

The rinse aid dispenser holds 6 oz (175 mL) of liquid rinse aid. Under normal conditions, this amount will last for approximately 3 months. You do not need to wait until the dispenser is empty to refill it — try to keep it full, but avoid overfilling as this can cause leaking and oversudsing. (Page 13)