2 differnet systems...i am thinking Co2 from a generator that runs from propane...so my unit go on and off where as with a tank you are doing a slow release so different method with same result

we are both cool! haha! :jointsmile:
stra8outtaWeed Reviewed by stra8outtaWeed on . DIY co2 controller if you own thermostat. i had this idea to build a co2 venting controller. items needed: -light detecting outlet - about 20$ -thermostat you plug in your fans to the thermostat and have them go on and off. you also have a light plugged into the thermostat one that goes on outside the grow room. a small light the smallest cfl you can find. plug your co2 into the light detecting outlet. now you can kind of see how it would work. when the light goes off and fans too, the light detecting outlet would turn Rating: 5