fourth year
Sylvan or one of his alter egos will disagree, but most codes will require that the male thread be on the PVC. There are at least two reasons for not using a female PVC adapter. First the plastic can expand more than the stell and cause a leak, and second, any corrosion of the steel thread will create pressure on the PVC and crack it. You can use a male PVC adapter into a galvanized fitting, but if there is any stress placed on it, it will crack at the thread. A better way would be to use a schedule 80 nipple with a thread on one end and couple it to the PVC line on the other end.
