KDTA
They have a full time self-service pump. I've never filled there, but have watched the big delivery truck fill the tank for the pump. I don't think you'll have any problems.
This airport was the one of the stops on my first solo cross country. I've flown there many times. But once I was there and it was so bumpy that I declined to land - headed back to my home base at Provo. Tomorrow the winds are forcast for okay in the morning, but gusting to 25+ in the afternoon. That's past my comfort level. Good luck.