From what I've read the water pump is submerged in the water tank.  There is
nothing inside my tank.  There is an opening at the top, however. (Not the
large screw-in cap, but a connection in the corner.  Is this the site of a
former pump or something else?  Also, the drain cap on the bottom of the
tank is missing.  Anyone have a good source of a replacement?

http://www.skipemmert.com/vanquestions/tankfitting.jpg
http://www.skipemmert.com/vanquestions/tankfitting2.jpg
http://www.skipemmert.com/vanquestions/tankfitting3.jpg
http://www.skipemmert.com/vanquestions/insidetank.jpg

Thanks for any help,

Skip Emmert-Keaton
1980 Westy <unnamed>