fill nipple RSS
HPA Fill Nipple Leaking? What to Check First
The tank holds air fine until you fill it, or it hisses from the fill port while you're gearing up. An r/airsoft player posted "HK Tank Fill Nipple Leaking?" with that problem. Short answer: an HPA fill nipple leak is usually a worn poppet o-ring or a thread seal, and both are cheap fixes. Why is my HPA fill nipple leaking? The fill nipple is a quick-disconnect male fitting with a small poppet inside that lets air in and keeps it there. ZDSPB's tank tech page calls these low maintenance parts that may need an occasional o-ring swap when they...