Hi Nathaniel,

Inside the van, the city water line goes from the city water hook-up
directly to the city water faucet connection on the sink (if you have the
OEM faucet). That is why the OEM faucet has two positions on, and a center
off position. The hose used should be capable of moderately high pressure
(50 psi). A lot of people buy a pressure regulator to attach between the
service port on the outside and the supply hose from the campground.

Inside the OEM faucet, there are two ball-type check valves, one for each
water supply connection. The check valves prevent the city water connection
from pressurizing the water tank side, and the water tank side from
pressurizing the city connection side.

Cheers,

Dave

On 2/5/07, Nathaniel Poole <myth.wright@gmail.com> wrote:
>
> Both of my vans had the plumbing more or less gutted and I'm trying to
> set it up again. What I want to know is how the lines are connected,
> especially the city water connection. I can see how the pump connects
> to the tank and all that, but what about city connection and where
> does the grey water go? On my parts van the drain is just sticking out
> the bottom, which I doubt most campgrounds would be too happy about.
> Is there supposed to bea holding tank below?
>
> Nathaniel
>