The water pump is submerged in the water tank.

Access the "secret compartment" (behind the 110v circuit breaker and
AC outlet) by removing the panel in the right top cabinet just under
the rear swing out table.

The pump has two spade connectors connecting into a clearish
connector.   Carefully unhook the pump wires from the connector.

Useing your voltmeter or test light, check for voltage on the wires
coming from the switch with the switch open and closed.  Hopefully
you'll have voltage meaning the switch and wiring is good....this is
what you want, it's easier to change the pump than the faucet switch.

Now Apply 12v to the wires coming from the pump. (black or brown wire
is ground).

You'll need a couple of lengths of wire to get power to the pump
directly from the battery....or you can pull the pump and take it to
your battery but you may have to cut off the connectors to get the
wires through the holes.

If you don't here the pump spinning time for a new one.
They are about $30 from the usual list vendors.

>My 1985 Westphalia has been removed from long term storage recently.
>
>The electric water pump for the sink seems non-operative. When my
>"mechanically inclined friend" looked under the sink area
>he did see something he recognised as a pump readily.
>
>Can anyone advise where that pump assembly is found? Is it built right
>into that knob fixture? Is it hidden elsewhere?
>
>Also: does anyone have a website URL showing  diagrams or visuals and
>instructions for that pump assembly so we could try to trouble shoot it?
>
>thanks in advance for your help and suggestions.
>
>James
>California
>1985 Westphalia