Milwaukee regulator

[Imsyu]

So ive been using this co2 regulator for some time, no issues plants and fish are happy but i just noticed that the left gauge doenst change at all it stays 50 psi no matter if i adjust the knob or not or am i doing something wrong lol

 

[misterc007]

The left gauge should be the one that measures how much co2 is in the tank so if its a full tank it will stay at 5 for months, at least that's what mine does.