with the sugar, yeast method i used 2 cups of sugar and 1/2 teasepoon of yeast in a 2 liter bottle is that okay? also instead of drilling a whole in the cap and puting my tubing their, i drilledto holes right underneath the cap and put two different tubes threw it will the co2 come out okay wiht two tubes? i did it this way because i plan on taping each tube to the brim of each pot (2 pots i guess) so the co2 flows right underneath it and up