Milwaukee regulator help

[Chin_Lee]

Delphinus
same here with my bubble count at about 100 bpm. I tried around 30-50 bpm but only got my ph down to about 7.4. so at around 100 bpm, my ph is around 6.8 which is fine by me. my reactor is the DJ square design and holds two containers of ARM.
my psi is set at 20 and i've never experienced what jesse has and i'm hoping to have some time next week to go see if i can help in anyway. I'm just glad i've got a 20lb CO2 tank.