I have a 20lb tank on my 280. Last fill was over a year ago.
But this is unusual. Before, I was refilling twice a year easily.
Two things that I've changed:
- I use gas line teflon on the threads
- I set a lower bubble rate so that the solenoid is always on rather than cycling all the time. It took a long time to dial it in this way and I had to play with the output pressure setting to be high enough to be stable but low enough that I could make minute adjustments with the needlevalve (even still the sweet spot is pretty razor thin)
I was fairly convinced I was losing CO2 more than using CO2. I suspect for 4-6 months you are probably bleeding it off in some fashion as well.
What regulator and needle valve are you using? I'm still using a Milwaukee regulator but I've swapped out my solenoid and needle valve to other brands and I think this has helped as well. The Milwaukee all-in-ones are convenient and inexpensive and get the job done for the most part but apparently not a lot nice things said about them out there so that might be a factor too.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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