You have no need for a protocol droid.

Glenn Reynolds links to this:

WaterMill Gathers Drinking Water from Moisture in the Air

British Columbia–based Element Four helps ease water shortages by pulling moisture straight out of the air. Engineered for muggy outdoor environments or humid indoor rooms, the wall-mountable WaterMill…can produce up to 12 liters of potable water per day.

Damn thing is staring at me. And next you end up needing a droid that understands the binary language of moisture vaporators.