How much rinse aid does the dispenser hold and how often does it need refilling?

The rinse aid dispenser holds 6 oz (175 mL) of liquid rinse aid. Under normal conditions, this amount will last about 3 months. You can check if it needs filling by looking at the fill indicator cap — a clear appearance means it needs filling, or if an 'E' is visible after removing the cap, the dispenser is empty. (Page 13)