http://www.warrenrupp.com/productdetail.asp?CategoryID=1&PumpID=7
Well, I looked them up. The above link is from the pump mfg. and the lower link has it for sale on EBay. It sounds like it might be perfect. Once again it is air driven.
http://www.nessya.com/pdt/113608_.htm
From:
Sent: Wednesday, October 24, 2007 7:32 PM
To:
Subject: RE: [papercreters] Pump and Buckets was Current Project
Look for used Wilden or Sandpiper diaphragm pumps. We pumped very thick sludges with those brands when I was in the sludge dewatering business.
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