In provincial parks up here, the taps located throughout the park do not have threads so unless the
water bandit will work, we can't connect a hose to that tap.
I use 2 or 3 blue
6 gal water jugs, cart them back to my site on a
folding hand truck, and pump the water into my gravity fill port.
I wanted to upgrade my water pump so I replaced it with a new
SHURflo pump and rigged the old one up on a board with a switch in a weather-proof box, and used
battery clamps to connect to my TT's battery. This setup should give you enough pressure to fill the tank.