I am in the mix of building a keezer and I am looking for advice. As an electrician I am very comfortable with electricity and wiring but gas regulators are new to me! I received a 5 lb CO2 container today and hooked it up to my brand new regulator to check the meter movement of my gauges. They arrived with dents in the aluminum. I hooked up my regulator and turned the CO2 tank all the way open and neither moved a bit. I pulled open the pressure relief valve and nothing come out. So I turned off the CO2 and removed the regulator and CO2 vented out. I contacted Keg Connection and they are sending me a new hi and low pressure gauge. I've read reports of diaphragms being broken and wondered if this was also possible? Any advice would be appreciated.
The damage is easier to see on low pressure.

The damage is easier to see on low pressure.