I know that we are trying to end the carbondoser talk, but I saw this and thought it might be relevant with all the fear over EOTD (which I think is a great acronym we have coined).
From Carbondoser.com:
"...The problem of "dumping" is completely eliminated with this regulator. Dumping is always a problem with ALL OTHER regulators which utilize a needle valve. Simply because, a needle valve relies on the pressure on both sides of it for it's accuracy. So, even though you have it set at a certain "bubble rate", once the pressure in the cylinder (or the outside atmospheric pressure) changes, so will the amount of co2 that passes through the needle valve. This is why it is physically impossible for any and ALL other regulators that rely on a needle valve to ever be consistent. Our regulator does not have a needle valve, but instead, it has an electronic valve that opens and closes in a fraction of a second, (each "opening and closing" equates to a bubble) and, due to the fact that it is "electronic" the "bubble rate" can NEVER change. Once it is set, it can never vary more than +/- 1/1,000=of a second."
Anyhow, hopefully that lets folks that have one sleep a bit better. We know it is awesome to have a sweet analog 2 stage unit as well. Different strokes for different folks.
I am looking to enter the masterflex club here shortly, I am at my wits end with my effluent needle valve getting restricted and my effluent delivery ebbing and flowing. I am going to read up, but it sounds like most folks use the units to "pull" effluent from the unit rather than "pushing" water into the CARX. I think I'll experiment with both unless folks have a big reason to go one way or the other.
Thanks all, what a thread!