Quote Originally Posted by gainesvillegreen
CO2 is heavier than air and by placing your source at root level, you're not going to get any of the benefits. Also, dry ice does not keep well in a standard freezer as it requires either much cooler temperatures or pressure to keep.
Say Brother, I know all that! I put my Dry Ice At the bottom of plant's, and a-fan blow's upwards.
I just do this at certain times,(like three to two week's before finishing). And I don't store for long period's, I just get 5 to 20 lbs at a time. Later