Well, I picked the hottest part of the day to do this. Checked all 3 valves in Water Compartment, 2 behind the 2 pumps, and 1 inside of those which is connected to the bottom of my fresh water tank...the 2 that are easy to get to of course are ok, good voltage and draining albeit slow, the one for the bottom of the tank is a trickle, but is pulling 12volts,(did not check amps). All 3 valves seem to click and I can feel the solenoid moving when power comes on/off. I turned on my pumps and am of course getting good exit of water from those 2 valves as well as a valve that is on opposite side of bus but still just a trickle from the bottom of the tank. This leads me to believe I am going to have to pull both pumps out and some associated wiring to access the valve to pull it out and either replace (probably) or try to repair with a kit. I might still try amp test, but my guess is that it is opening/closing ok, just no flow...probably some bug or something. Yech and before I forget it, thanks Dale for your input.