Green goo puncture repair liquid can repair small punctures and pin-holes.
Pump ball and identify the area where the pinhole is (mark the area).
Deflate until pressure is not forcing air out of the ball.
Fill with green goo, pump ball to normal size and pressure
try to get the goo around the marked area of the pin-hole or puncture.
When the goo pushes into the hole, it will dry and set flexible, and solid, it will also form a seat across the surface of the interior of the ball, closing the area and coating it to protect from any more air escaping.
This should form a good seal and stop future issues from this puncture.
Thanks.
Chat with our AI personalities
If you simply want a Water Polo ball to train with then you can fix it using a pucture repair kit, however this will not be an offical ball and therefore cannot be used in matches