You'd only need a trailer and access to the water source then set up in a suitable spot. Cart the container/s in empty. Worth looking into the regs to clarify the pump connection or is it the drafting of water to the high banker. I see it like tax legislation a new regulation sometimes creates a new loop hole if you look into enough. If there is a loop hole and it makes you legal go for it because if any regulator in a personal capacity high banks you can bank on it they'll use it every day of the week. If the ban is based on the drafting of water to the banker I'm pretty sure the wording want apply to filling a container. If this is the case then it could be deemed a gray area IE loop hole that could (edit) allow you to operate.