When you have city water disconnected, the water pump switch on, and open one of the faucets, you should be able to hear the pump running, and find it by the sound. Alternatively, contact Jayco online with your serial number, and request a schematic diagram that shows locations of components in your trailer.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.