Why is my rugby ball deflating? is there ball care rule i should be following?

Question

i only had it one season, didn't get a lot of play, leaking from the "x" in the seams. (at the top)

Answer 1

its stuffed, get a new ball

Answer 2

if it's a cheapo one then your knacked the poor quality valves are rubbish. Make sure you are using the right size needle and dont press it in so far.

If it was kept in damp conditions this wont help either. You may be able to fix it by inducing a little puncture foam or gel into it like for bike tyres but probably wont work. tesco do a rugby ball for about £4 if you want a cheap replacement.