Bubble counter question

[o2bubble]

Hi all, just wondering if there is a way to eliminate using bubble counter while still able to know how to adjust the CO2 or a bubble counter that does not require topup for evaporated water every 2-3 weeks (tried plastic, glass, jbj copper type all the same). If the water drops below the inlet in the counter i.e. co2 does not go into the water, does it matter? I mean will there be any CO2 loss?

[Shadow]

get the glass diffuser with build in bubble counter.

Does not really matter if CO2 goes into water in bubble counter or not. Just that now you can;t tell how many bubble