For the highest quality and best tasting water, follow this simple process every 1 to 3 months when you change your bottle:

1. Unplug your cooler.
2. Remove empty bottle and drain any remaining water. 
3. Dilute 1 teaspoon of non-perfumed bleach in 1 gallon of water. 
4. Dampen a clean cloth (not paper towel) in the bleach mixture and wipe down the inside of the cooler reservoir.
5.  Wipe the spigots. 
6. Rinse the reservoir with at least 1 gallon of clean water. (Drain this water through the cold-water spigot). 
7. Discard the bleach solution. 
8. Place a new bottle of water on your cooler. 
9. Plug your cooler into the outlet. 

Also remember, the drip tray should be emptied periodically because it isn’t a drain, but a tray to catch the occasional spill.