What a bummer not a month old,3 hours use and she won't fill past 2100 PSI. I just used it Tuesday and it was fine. I remember reading about a high pressure valve or something but I can't find it. But I'm not going to mess with it, less than 30 days old so they pay the freight and replace it not fix it. Lucky I still have my old faithful Tuxing! Used it to top off the tank and I'm in business again.
Dennis
Dennis