Скачать или смотреть DIY recipe for CO2

Not my idea, but here is an example of using sugar, water, and active yeast to create extra co2 for your grow room. Best of all, it only costs $1 to start, and an occasional replenish of simple syrup to continue feeding the yeast. When you notice the fermentation activity slowing, introduce some fresh simple syrup at a fraction of the cost of branded co2 generation kits.
Best of all, it is very inexpensive and produces a net-zero waste footprint. The sugar bag is paper, the plastic 4 litre water bottle is reused, the water is from our well, and the yeast packet can be recycled too.
The 2kb bag of sugar and triple pouch of yeast cost $5 CAD, or about $3.50 USD.
The unused pouches of yeast can be used to start a second or third co2 generator.
This one will go in my 4x4 flower tent, and I will make another for the 2x2 veg ⛺️