Leaks on the Inside

• 1). Identify where the leak is by submerging the ball in a bucket of water. Slowly turn the ball and look for bubbles in the water that come from the ball. If no bubbles appear, you may not have a leak and simply need to reinflate the ball.
  
  
• 2). If there is a leak, fill a syringe with athletic ball sealant and inject the sealant into the volleyball. Follow the manufacturer's instructions for the amount of sealant to inject; typically, 1/2 oz. to 1 oz. suffices. You can find this sealant at sporting goods stores. Some sealants come with their own insertion valves; you may not need your own. Athletic ball sealant is flexible and conforms to the inner bladder to maintain the spherical shape of the ball.
  
  
• 3). Insert the needle on the air pump into the ball and inflate until the ball reaches the desired hardness. The standard PSI for volleyballs ranges from 4.26 to 4.61.
  
  
• 4). Bounce the ball several times to test the inflation.