This is wahat U need...
1 culligan jug (empty half the water)
I cork larger enough to fill the hole on top
4 ft of 3/8 hose ( you can use fuel injestion line for instance go to a part source tell em u need 3/8 heater hose)
also a copper stoper also from part source and a gear clamp
1 jar of DRY active yeast
5kg bag of sugar
I heat bad like the one u use for seedlings


step 1. remove half the water from the culligan jug
step 2. add 1.5 jg of sugar and 10 table spoons of dry active yeast In to the culligan jug and shake to mix.
step 3. get a 1/2 inch drill bit and drill a hole though the center of the cork
step 4. drill tiney holes all arround and up and down the 3/8 hose
step 5. fit the 3/hose in the 1/2 inch hole you drilled in the cork or rubber stopper
step 6. Seal with silicone
step 7. use the gear clamp and the brass stopperto plug the other end of the hose so now the only place cot can escape from is from the tiny holes u have drilled.
step 8. Place ther heating pad under the culligan jug with the yeast sugar mix in it. The heat will speed the natural fermentation process and the bi product of the fermintation process is co2

Change solution every 10 - 14 days