I was thinking of adapting my Shurflo pump to transfer water for dry camping. The setup would be something like:
1. Install a garden hose fitting on the winterizing hose.
2. Insert one end of the hose into a 55gal water drum (in the bed of my truck) and attach the other end to the newly installed fitting.
3. Add a 3-way valve (similar to the winterizing valve) between the pump and the RV plumbing.
4. Add a tee into the tank vent line.
5. Connect the newly installed valve and tee.
When I want to transfer water I would turn the pump off, flip the winterizing valve and the new valve, and turn the pump back on. Water should flow in through the winterizing hose and into the tank through the vent hose. The main tank fill would act as the vent.
Has anyone done something similar? Would I burn out thepump if I used it continuously for that long (i.e., 55GAL @ 2.8GPM = 20MIN)? If prime is a problem, I could put a small valve at the end of thegarden hose and siphon water to that point before attaching to the winterizing hose.