CO2 tank drains after a month
I am running a co2 system with a 10lb tank and a JBJ solenoid. I run about 2 bubbles per second on a 8 hr interval. This is up from 1 bps, which I used to run. The tank is heavily planted.
Recently (last three fills) the tank has been running out after a month.
Is it possible to drain a 10 lb tank this quickly or is my solenoid leaking? Any ways to test to see where the leak might be? I do have a Plastic washer inside the screw valve b/t the solenoid and the tank.
This is getting expensive to keep filling the tank.
Any insight would be appreciated.