Water or pool volleyball is very similar to beach volleyball, with the main difference being it is played in water. There are two teams, each with six players, and each team tries to score points by grounding the ball on their opponent’s side of the court. They also have to prevent the other team from trying to do the same.
For that purpose, a hand-held ball filled with air is used. You can use a regular beach volleyball, but I recommend using a ball meant to be used in water to have the most enjoyable experience.
People of all ages and skill levels can play the game, and the number of players and size of teams can vary, depending on the type of game being played. Games are usually played for up to 21 points; every time a team manages to ground the ball on the opposite side of the net, it is awarded one point.
The team that gets 21 points first wins the game.
Unlike in beach or indoor volleyball, the net in pool volleyball should be placed just above the water to ensure that the ball can be passed over it. Also, the ball, in such cases, is made from materials that prevent it from sinking and is filled with air to stay afloat in water. Beach balls are best suited for that.
Another thing to keep in mind is that players should ideally wear clothing like swimsuits that cannot absorb water and ensure easy movement.