Home made CO2 test results

I just got a meter on ebay for 115 bucks new. I have a 72 cubic foot cabinet grow. I have one bottle that is 1.5 gallons. there is 5 tablesppons of yeast and 5 cups of sugar currently putting out 1000 ppm. about 500 outside the cabinet

the yeast i got is 2 pounds on ebay for 13 bucks. sugar is 5.50 for ten pounds at walmart. seems about enough yeast for two grows. not bad! gonna pump it up to 1500ppm in a week i think coming up on a month of flowering

never used co2 on my crops, hows it workin out for u? u have a pic of ur co2 setup?

Awesome! Nice to see some results for the DIY'er. Please post on other CO2 threads so people can see they can produce enough CO2 to make a difference.

Yes plz post pix of your setup, mine is a tiny air pump with stone in a gallon jug with a mixture of yeast/sugar/baking soda for smell and addt. co2 with 'vinegarization.' This air tight package pushes air into the back of an oscilating fan. I measure 600ppm avg. and twice that when I shake it everyday for about an hour after that. What are you doing right, or what is it you aren't telling us? I mend the mix every week to keep it up, but after a month it's ferts for my compost.