> On my '74 bus the washer fluid reservoir itself was pressurized via a
>> hose with a standard  tire valve stem that you could add air to.
>> Nothing was connected to the spare tire.

My '61 Splitty had no washers--and the wipers didn't "park" but
just stoped when you pushed in the switch.

My '67 had a washer tank under the dash--on the tray--at the
L end.  It had a bellows fill-cap, so you just pumped your own
washer fluid.  It worked well.  I don't remember if the wipers
parked or not.

My '76 had the tank to pressurize as Mark describes above.

I'll stick to my Vanagon washers and wipers....

                        Richard A Jones
                        Boulder, Colorado