I have never had that problem, but then again I change mine every time it starts to get tight when pressurizing, that means the O rings are swelled a lot and I just change them out, they are fairly cheap so I keep a bunch in my bag with me at all times, that way if they are going bad or it's getting too tight I can change them on the spot and make it easy again. Hope that helps.
Another great job my friend.
Thank you, it was a little difficult to get this one to fill all the way, but patients is the key for sure.
Question: How do you keep the O-rings on the piston from getting mutilated by the threading inside the cylinder? Do you have this problem?
I have never had that problem, but then again I change mine every time it starts to get tight when pressurizing, that means the O rings are swelled a lot and I just change them out, they are fairly cheap so I keep a bunch in my bag with me at all times, that way if they are going bad or it's getting too tight I can change them on the spot and make it easy again. Hope that helps.