Can’t fill CO2 bottle
the fill cap that you screw the bottle into leaks around what looks like a pre drilled hole. I use a bulk CO2 tank thru a fill station for my Avanti rifle as well as my paintball tanks. Never had an issue before. The hole is below where the tube comes from the bulk tank. I was going to buy a replacement but I noticed they all seem to have this hole. Any thoughts?
Stuck a flashlight in so you can see the hole.
Here you can see the hole in the threads. Also, is there supposed to be a washer in the at the top?
Ok not sure how old the seals are from a friend, so I ordered some new ones. Is that the purpose of that vent hole... to let you know you’re seal needs replacing?
Actually, I'm pretty sure that it's there to vent the pressurized system when you are unscrewing the tank. A little silicone grease on those O-rings doesn't hurt.