. Thanks for the input pal! I think your right but at this stage im getting a bit swamped with other things i cant even keep up with my C02 supplementation. So i decided to invert my exhaust fan and pull in fresh air from the outside and hopefully whatever C02 comes with it. I have a small carbon filter keeping dirt out of the ducting and bugs from coming in and then im exhausting into my kitchen lol i have a big carbone filter attached to the end of the 2nd inline fan exhausting into my kitchen without it theres a deliciouso stank, with the filter theres no smell so i know its workin properly. And my C02 meter did go up about 100+ppm not much, but im thinking my exhaust setting is too high so not enough C02 is able to build up. Give me 2days and ill get back to yall with an update . But this method of using outside fresh air seems to already be cheaper and doing something for the 4×6 tentI used to use fermentation to add some CO2 long before I got the CO2 controller using a 6USG glass carboy with just white sugar and distillers yeast. I kept it in the corner of the grow room with a double layer of garbage bags covering everything but the air lock at the top. If you just add a little yeast food once in a while it takes about 6 weeks before it stops bubbling. Then I'd distill it a few times to make my own everclear to make oils with if I didn't drink it all first.
A friend liked to make his own beer and wine so built an insulated box outside the grow room, (a large walk-in closet), and ran tubing from the DIY air locks and piped the gas into the room. Always had really nice plants too.