Posted by Mike McClintock on September 13, 1999 at 08:51:29:
I may have found a solution to erratic vacuum wiper performance. KNF Neuberger Company, a manufacturer of medical and testing vacuum pumps, has a series of 6, 12 and 24 volt DC micro pumps.I have a 24 volt pump on order that produces 18 inches of vacuum, drawing 4 liters per minute. I'll let the forum know about it's performance when I get it.
MM