So after disassembling, cleaning the interior parts and reassembling the gauges looked normal for over 20 hours. The fill gauge was at ~1000 psi and pressure gauge was set to ~10 (and moved up and down with the knob). Came home and the gauges look like this and the pressure gauge does not change with the knob. The tank feels the same weight so I don’t think there’s a leak. I suspect liquid got into the gauges and I have seen you can buy replacements but are these fixable or are they toast?