I have 3 mags with CCM fittings 2 of them work great but for some reason one of my mags keeps blowing the orings in the CCM fittings. I have put new orings in each fitting, I have had them blow orings with 3 seperate tanks and it is not the same fitting that gets the oring blown. Has anyone else had this problem? Does anyone have an idea of how to fix it?