HELP! Victor VTS450d leaking from pressure relief valve
so recently I got a used Victor VTS450D dual stage regulator off flebay and set it all up. On the first tank of CO2, everything seems like it was working fine for about 2 weeks. Then after that one day I noticed my CO2 tank was almost empty. At the time I thought maybe I had some leak issues in the hoses and corrected it.
Then I got my second tank of CO2 and upon connecting it and opening the tank, I can hear gas escaping some where on the regulator. After looking at it closely, I'm sure the leak is coming from the pressure relief valve. I took it apart and looks like its just a spring loaded piston that presses against an o-ring. I tried cleaning everything and putting it back together but I can still hear it leaking gas. So I guess I have 2 questions.
1) anyone know the part number of the pressure relief valve?
2) Is it worth trying to fix or should I just go and get another regulator?