co2

[soserthc1]

i got a three part system 1) veg cabinet holds my 5 moms , clones on bottom 2) A little box for germ seeds 3) a reg size bedroom closet with a 600 watt like 3 by 3 fits like 4 5 gal pots. ok question im using 2ltr soda bottles with yeast and sugar and water for co2 is there another inexpensive way i can do this ??? thanks in advance guys ....... peace to you all