Replica Match Ball Size 5

Why does air come out of the end of the ball when I inflate it?
The air that escapes from the ends of the ball when it is inflated comes from between the bladder and the inner facing surface of the ball. This is NOT the air that is being pumped into the ball, it is air that is trapped between the bladder and inner facing. This is a natural occurance when pumping up any ball. It doesnt necessarily mean that the ball is punctured or has faulty valves.

How much do I pump up a ball and how long does it stay inflated?
All GILBERT rugby balls have a recommended psi (pound per square inch) of between 8-10psi. All balls should be inflated to this pressure - any balls that are not inflated to this pressure will suffer in their performance. If balls are over inflated (e.g. over 10psi) then they will become out of shape and the stitching will become exposed and stretched. Balls should be re-inflated or need topping up after a week or so.