Review on 💨 Rhinox CO2 Generator Kit - Pressurized DIY System with Caps, Valves, 3-Way Connector, Tubing, and Pressure Gauge by Jennifer Moore

I wanted to add 1200-1500 ppm CO2 to my 2x4 grow tent. I had little hope for this homemade device, but figured $25 would be worth a try before shelling out hundreds on a CO2 tank and hardware. The instructions are in language I don't understand (which is annoying), but there are plenty of YouTube videos explaining the basics. :1) for bottle "A" and 200 g baking soda in 200 ml water (ratio 1:1) for bottle "B". acid) compression to start the process. Everything was fine, but the pressure did not rise above 0.5. I'm a big strong guy but I had to squeeze as hard as I could to get more citric acid. Even with a small amount of citric acid, the pressure didn't reach the level I need (1.0). Frustrated, I decided to just see how many blisters it produced with different hand positions. Lo and behold, as soon as the CO2 started flowing in, more citric acid was automatically drawn into bottle "B” (baking soda) and the pressure rose to 1.0 (Woo!). However, I wasn't sure if that would help. Big difference in the 2x4 grow tent. It's slightly larger than a 30 gallon aquarium. boy was i wrong! I opened the needle valve just a quarter turn and the tent quickly topped 2000ppm (too much!). And that with the 4-inch fan running! I turned off the CO2 generator (I thought) and also turned off the fan (once the tent got back down to 1500ppm) to allow the plants to "suck in" the CO2. I came back a few minutes later and the tent was at 3200ppm! I lifted the citric acid tube with a magnet, but the reaction continued and the needle valve was still open a quarter turn. I think you need to turn both off to really turn it off. up to 800ppm. Then I noticed that the pressure in the tank went from 1.0 to 2.6. I opened the needle valve about an eighth of an inch and the CO2 levels began to rise rapidly again. I turned the fan back on and the tent seems to stay consistently at 1200ppm (good!). I'm sure it won't take long and I'll have to move the tube back into the citric acid to check the reaction. I'm glad it can meet my needs for a 2x4 grow tent. It may take a little fiddling to put it on autopilot. First results are promising. Update: Using 300ml each of baking soda and citric acid (1:3 water ratio) keeps my 2x4 tent at 800ppm 10 hours a day for two (2) days. I had to buy a bubble counter (not to count bubbles) but to see how much CO2 is released. The bubble counter is "mandatory" for this device and must be activated.