Reply To: FX Independence loses pressure
“metal rings between the foster fitting and the breech” cant see your part ( have a picture?) but you seem to be describing the Dowty washer, like a metal washer with a seal pressed inside it. You can find a new one at a good hardware or certainly at a hydraulic warehouse type place.
A drop of Dawn soap mixed with a few drops of water applied with a q-tip should show your leak,.
And please give us the updated fix when you get it done.