Mine's in the ground so I can't advise you on re-potting.
But as far as watering goes, in summer here mine often gets a pouring rain shower every day. Our soil is pure sand so drainage is excellent, and this palm is growing near a big oak tree too, so that sucks away any excess water as well.
Very little water in the winter though, as it is not in a spot that gets any irrigation so since winter is our dry season, it survives on what it has stored. It's about 10ft. tall and the caudex at the base is around 18in. across now.
If you're growing it in a spot that gets cool at night, and good bright light during the day, I'd say to water it seldom, but do spray the leaves with water once in a while.
