Love to have one, but the ZBA and building inspector were going to be all over us about installing a potential "accessory dwelling unit", something our town hates. It wasn't worth the fight, so I put a frost-free hydrant right outside the door. I have a 20l carboy to supply small amounts of water for sharpening and other uses, and go to the slop sink in the basement of the house to wash paint brushes and such. So far it has worked out fine.