Tank valve issue, I think??

About to run out for the afternoon but figured I 'd take a few more shots before putting the rifle away.

Filled the tank to about 4500psi 2 days ago. Refiled a couple of guns from the tank since. Went to refill one for a quick few shots before I left and it filled REALLY slowly. Certainly slower than any human hand could control the valve/knob...

Just to make sure the fill probe wasn't clogged with some bug guts and/or see if it was the rifle restricting the flow, I left the probe out of the gun (but still attached to the tank hose) and opened the valve.... virtually nothing... I have a spare fill probe so tried that, same response (as in virtually nothing). Took the fill probe off the tank hose and held on tight …. but still virtually nothing.

The tank is a Great White with one of Joe's valves (no dig, just info) and both are prob 9-10 years old. Seems like the tank valve to me but don't know if there is anything the average user can do about it. Also, in addition the air NOT flowing out of the tank the gauge doesn't rise anymore either so thinking it's not the hose, gotta be inside the tank valve??? But what to look for ??
 
I'm lost are you saying the tank is empty or you "think" it has air in it but cant get any flow out, even with the hose assembly out?


Tank probably has something close to 90cf of 4000 psi. in it. I described just filling a rifle (but SLOWLY). that fill was to 240bar. No appreciable amount of air coming out of tank. It would probably take 5 min to fil a balloon.
 
Sounds like the tank valve to me especially if you open the tank and no air comes out, did you open the bleed/vent knob and then open the tank to see if air exits out the bleed off vent.


I'm torn on opening the bleed. Might take a heck of long time to fill a gun but at least I have air for a few days while researching, maybe...

Really looking to see if this a symptom that others have had and what it might be or if I just get a new valve and move on... I can't be the first...