Well, we'll see what happens now.
I emptied what was in there, and it did seem to take 'new' air on refilling. I got it up to near 200 PSI and it became difficult to go any more. I sat on it and it depressed to a spot that seemed more normal and better. I need to just ride it now to give it a full test and to see if it now keeps the air in. That's the big question now I guess...
Thing is too, I'm going to be selling the bike soon, so I want it to be in sellable shape ( I don't really want to be sending off for service.)