Someone had asked a question a week or two ago about where to get
submersable sink pumps for Vanagon Westfalia campers (for less than the
dealer's price).  I am now carrying German pumps for $24.95 each. Got my
first few the other day, put one in my '89 five minutes later (just in time
for our first camping trip in our "new" Westy!), and it works just great! 
Also have non-submersable pumps coming for '74-79 campers.
-Ron Salmon
 The Bus Depot
 http://www.busdepot.com