After a few tries and one burned out pump I think we finally have the water system updated and working in Blaze.
#1: we have qty. 2, 10 gallon stainless steel tanks for fresh water
#2: quick disconnect to change water line from empty tank to full tank
#3: dump tank, all tanks are inside the van so they will not freeze.
#4: Seaflo series 21 water pump, their tech support is really good
#5: Seaflo water accumulator to eliminate pulsing of the pump.
Fingers crossed that this will keep working