A team playing individuals not on the roster will result in a forfeit being declared against the offending team. Club Sport eligibility. All participants must present a current valid I.U. I.D. to the appropriate SOS personnel prior to participating in any SOS sport contest or event. All players must remain in contact with the innertube. Each team lines up at opposing ends of the pool at the start of play.
Players take position one yard apart.
Only two players are allowed between goal posts. Play starts when the referee throws the ball into the center of the playing area and both teams propel themselves toward the ball. After each score, the ball is put in play by referee awarding the ball to the team scored upon. The goalie takes the ball and puts the ball into play on the referee's whistle. Men must use one hand only to direct the ball, women may use two.