I recently bought my first Pumphaus hardline kit for my Phantom. The problem is that both ends of the aluminum line easily pull right out of any fittings I insert them into, CCM or otherwise. It doesn't lock or secure into the fittings under tension or air pressure like macroline does. The surface of the ends of the aluminum line are smooth and don't seem to provide anything for the fittings to bite into. I'm new to this style of hardline, but this can't be normal.
This is the gun with the hardline kit installed with the aluminum line fully inserted in both fittings:
When the gun is pressurized, this happens:
It holds air, but just barely. It looks like poop and does not seem safe at all. One small knock could cause the line to blow out from the fitting on the vertical ASA. Again, the fittings themselves aren't biting in and securing the line in place. The wide angle of the hardline is all that's keeping the air pressure from pushing it out completely. If the aluminum line were a different shape, say a wide U shape, it would fly right off the fittings.
So can anyone who is familiar with this hardline tell me why this is happening?