Inflating my Physioball?

[Ahaag]

Wondering how to successfully re-inflate my Physioball (bought mid 90's)? I have pump + attachments, but not much luck.

 

[allcdnboy1]

probably need to purchase a new one ... check out ... it's probably too old and it just can't keep the air in, which would be expected for a ball about 10 yrs old.