Using possibly a water pump converter package or simply a piece of tubing connected for the inlet on the water pump, insert one other stop of the pipe into a gallon of antifreeze Or do you want to work with a Kampgrounds of America location as a practical foundation camp http://recreational-vehicle-merc27046.bluxeblog.com/21226027/how-much-you-need-to-expect-you-ll-pay-for-a-good-rv-winterization-specials