Slloth wrote:
 > On the left side of the Westfalia I have three receptacles. Left is
 > water, middle is power what is the right one? Right now I have a key
hole.

The one on the right (where the keyhole is) is for external filling of
the onboard 13 gallon potable water tank.

I always fill mine from inside where I can clean and inspect the tank at
the same time.

The left one is for "City Water" and it's best to purchase a pressure
regulator that goes between that fitting and the hose so that the
internal system is never overpressurized.  Personally, I'd recommend
that you remove the screws that hold the plastic fitting to the van ...
pull it out a ways ... then "Test" the system with city water hooked up.
  Many of these have cracked inside and hooking up to city water will
soak the area behind the fridge and cause major rust ... if the entire
kitchen isn't removed so the area can be dried out.

Mike