As I recall the water pump used on your coach is either a Grundfos or a Headhunter. If it is a Grundfos JetpaQ water pump, there are several sources on the internet for the pumps and potentially for the parts.
You might take a look at:
http://www.marineparts.com/partspage...and/grund1.htm or
http://www.awqinc.com/jetpaq.htm
There is a manual for the combined pump/accumulator model at
http://tinyurl.com/qcjps that includes a troubleshooting guide.
The manufacturer's address is:
GRUNDFOS Pumps Corporation • 2555 Clovis Avenue • Clovis, CA 93612
The Headhunter is a good pump and is currently available but sources for either product is limited and prices are high as they are primarily used on yachts.There are not many sources for Headhunter pumps. You can get one through Newell or contact OceanLink Inc.
terri@oceanlinkinc.com who I know carries Headhunter.
Sorry to hear you will not be able to attend the mini-rally.
Most of the changes to Newell's are evolutionary rather than revolutionary. The major styling changes took place in 1990 with the series 2000 model, the change in front caps in 2000, the changes to the 2000i in 2005 and the P2000i in late 2006. Other major changes included going to all electric coaches in 1994, change from 8V92 to Series 60 in 1994, use of slide-outs in 1997, use of air-operated entry door 2001 (may be a couple in 2000), change from HWH hydraulic to Valid electric slides during 2003, change to ZF steerable tag axle during 2004, use of the Cat C-15 with available 10 speed ZF transmission during 2006, use of engines requiring ULSD 2009 (also coach 1229 in 2008).