Its a learning curve for me. I've been out and about using the camper for about a month now and learning the intricacies of camping in a truck camper. I unintentionally keep comparing functionality to my last adventuring vehicle, a 2004 Sportsmobile E350 Van. In that van, there was only 1 threaded connection outside where you could hook up to a pressurized fill -- when you wanted to fill the tank, you flipped a valve and it switched from fill to direct to faucet. If you wanted to gravity fill there was another connection "inside" which you could fill it (although that was pretty inconvenient too.) I use the pressurized one from the tap from my faucet outside my house to fill it up before the trip. No big deal now I suppose -- I just fill in the next spot over.
Now waiting for the next problem.