Oh, another question...
I took our coach out of inside storage this weekend having winterized with air blow-out. (It was indoors) We filled the water tank to sanitize adding the recommended bleach mixture, using the 12VDC pump to fill the lines with no problem, and noticed a volume of air pressure as I removed the hose end from the orifice in the plumbing bay. We then drove the coach for a time as recommended. As we set up camp, the 12VDC water pump ran and ran but delivered very little water to the taps. Upon examination, the PUMProtector pre-strainer exhibited air circulating under the clear cover with the motor aft of it essentially free-wheeling.
First, I'm stymied as to the cause. Second, I can't seem to come up with a cure.
Any ideas friends?