Calcium reactor / carbon doser help

[Tureefik]

It’s crazy but I Kinda forgot how to unhook my carbon doser from my co2 tank safely without damaging the carbon doser
Do you turn off the cylinder first or unplug the carbon doser first
forgot the process and dont wanna damage anything
I have a carbon doser kamoer peristaltic with a geo calrx

 

[PeterC99]

You turn off the cylinder first and release any pressure from the release valve Before doing anything with the carbon doser.

 

[Tureefik]

So turn off the co2 tank do I unhook the line with the check valve on it from the carbon doser too
Or just turn off cylinder and then unplug the regulator and then turn the carbon doser valve closed