Here are a few more things you can try. When doing a leaky hose repair in the field I first double up on clamps. If that dies not work I dip the hose in hot water for a minute, amazing how often this works. If it is still leaking I check the adapter and the inside of the hose for any burs that can be trimmed with a razor knife. If it is still leaking I start swapping parts. I first change out the adapter, some of them are just a little warped. I would then change the hose, some hoses will never seal, no matter what you do.

Later, Dennis