I would have thought that too, but the pieces don't fit together...I did email Frank, he responded right away and explained that the stopper goes in first, then the cap. Still not sure what the rubber washer is for, lol.
Is anyone using the unit without the hose, filling manually? I'm just setting mine up and having some trouble properly installing the rubber stopper and washer at the bottom in order to prevent it from dripping from the valve. The rubber washer doesn't exactly fit inside the cap, do I put the...