legalizeitcanada
Well-Known Member
So i gotta question, im growin in a fridge, I wanted to do a closed system for the flowering chamber, would putting in a yeast based Co2 system with air pump work to bring enough fresh Co2 for the plants to breathe between door openings, there would still be an internal fan to move air, but the chamber would be sealed, only the light would be vented using a cool tube.....think this would work????
Experiment 1 for generating co2 from yeast/sugar: used homebrewer's ratio of sugar to water and XxNinjaxX's amount of yeast (see Sticky: HomeMade CO2 Guide), at least for this first attempt.
Room details - 384 cubic feet, closed really tight (takes effort to open the door due to negative pressure when exhausting, which i've stopped for this experiment), a/c, 600 watt mh light, 170 cfm fan pulling carbon filter and recirculating air, 15 two to three week old seedlings.
household co2 equal to 650 ppm.
Formula: 2.25 gallons of water/3.1 pounds sugar/46 grams of yeast in 4 separate containers. i cheated and ran one liter bottle, saw how much my co2 jumped, and scaled it up to target 1,500 ppm co2.
Ended up with 1525 ppm at 11 pm on 6/27/10 after running two hours.
co2 at 1625 at 3 pm on 6/28.
co2 at 1575 at 5 pm on 6/28/10.