I'm Chris and new to Airguns I received a 4500 psi pump for my Beeman qb chief. (Btw I highly suggest getting it I'm shooting 1.1" groups at 100 yards.) But I used the pump only a few times and during the last fill the female Foster got up to exactly 1000 psi and popped off. It shot a white cloud of compressed air and will no longer fill my two ags. I've tested the problem it's at the 8mm female Foster quick connect. The seller from Amazon will not respond. Can you guys help me? I will tell you I've taken it apart the adapter and cleaned due to someone saying it might have dirt in it. I have gone into the hose and replaced every O-ring even the ones that looked fine. It's hard to get these female quick connects unless online. I need to use the gun the day after tomorrow so I can't just buy it online before Sunday hopefully you guys can help with a quick fix. Also the pump acts completely nor without the famle like it has pressure and there's no leak until I put on the quick connect.