Sydgroup winny shooting out of vial

Starting taking my win two days ago and both days after i fill my syringe and pull it out of the vial the winny will squirt out past the rubber stopper. This stuff is too expensive to waste. I inject air into the vial before i fill the syringe so I dont know what i am doing wrong?

Are you pushing in more air than you plan on withdrawing into the syringe? That will happen if you have excess air buildup in the vial. Might be wise to just stick in a pin and let off the excess air pressure so it's at equilibrium with the outside pressure.