I don’t get back here often, but I came on by tonight and read your comment about the air filter absolutely! Good eye for detail and shared info
When I run the pump line into the water bubbler and into the root chamber, I like to think it serves two purposes , air moisture and some sort of “ air cleaning “
I messed with treating the water bubble jar like a wine air lock and was even adding h202 to the jar as a means of “ sterilizing “ and also my thought was adding a bit more o2 to the air.
The jar was 100 ml water and I played with up to 5 ml of h202 so far without any oxidation issues. Haven’t gone much further yet.
My issue was in my systems I run right as a drum, tight. I don’t want to breathe any mist or have any mist in my breathable air so between neoprene collars and foam, I noticed a oxygen deficient root zone. But never seen any mold, ever- went air input and could see the difference even as small as the input was.
Only escape for the positive air input is that of the drain to waste which is kinda sorta s trap so I don’t worry about mist entering the air.
I’m so bad with the filters on my air pumps I always remove them but I don’t smoke or spray any detergents in my rooms “ thinking it’s clean air” I need to keep up with the filters haha.
Be well ! Enjoy The Weeknd ! Avoid bad vibes