Do DIY co2 systems work

It is an option for making CO2, but its mostly likely NOT needed, You need to have a sealed grow room and pushing 40+DLI to fully get the advantages out of additional CO2 added into your grow or else it is just wasted money. Mainly if your space is not sealed your just venting out the CO2 back into your living room or outside depending how your setup is. Indoor air is naturally higher in CO2 so that's a bonus from us being in the space with the plants. I do not use supplemental CO2 and probably never will. In short don't waste your time or money on it, and if you want a cheep source for when your ready, use dry ice or the mushroom bags, they make a good source of it and are also a living organism you can add into your compost pile. Dry ice can be found at most companies that deal in regular wet Ice. FYI: We will not be notified of any reply or tag [@] in the questions part of the website, if you need to reach out with other information use your DM "direct mailbox" in the bottom right hand corner of the page. it looks like a little paper airplane icon. Best Of Luck!