kwads

A spa was left on the property we bought (even though we said we didn't want it). Trying to drain it and have it removed. It's a Coleman 300 or 400 series from 2005. When I screw the garden hose on the external drain and try to turn the drain counterclockwise, the drain "fights" the turn. If I let go, the drain literally spins itself backwards (clockwise). I can't seem to turn it far enough counterclockwise to get it to allow being pulled out to open the drain. Any suggestions?