JohnT Posted April 24, 2021 Share Posted April 24, 2021 (edited) Hey folks, I just bought a second hand version of this co2 regulator: https://www.amazon.com/FZONE-Aquarium-Regulator-Compatible-Paintball/dp/B08P5FKQDT/ref=sr_1_1?dchild=1&keywords=FZONE&qid=1619284323&sr=8-1 and and I'm trying to remove the co2 tank to refill it and I've a question. The "Output pressure gauge" is stuck at 40 and doesn't go below that. Using the know I can increase the pressure but I can't turn the knob enough to make the gauge go below 40. My questions are: 1) do I need to get the pressure to 0 to before disconnecting the tank? 2) any idea why the pressure doesn't go down? TIA! Edited April 24, 2021 by JohnT Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now