<VV> I was digging through some parts and found an odd part:

[Tom St.Amand]

   Shawn,

   As  I recall one of my parts vans had an aftermarket mechanical window
   washing  pump that was foot operated. it had an in and an out "vacuum"
   hoses  to  pump washer fluid.  perhaps that is a similar hand operated
   pump.

   Tom St. Amand
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References

   1. http://g.msn.com/8HMBENUS/2731??PS=47575