Bubble rate is fast, can't really count it. 10lb Co2 tank lasts about 3 weeks keeping DC yellowish/green
This comment is another reason why I wanted this info and posted this thread.
I use a 10 lb tank in 2 weeks keeping the DC yellowish/green myself. I can find no leaks anywhere and I use a Mazzei.
I keep thinking I must have a leak or am doing something wrong, but it may be just that this is what my tank needs to keep my c02 ranges where they need to be.
Thanks for posting!