weedyoo.... what you made is what i explained... its called a CO2 generator.... but what i don't understand is why you're using a 5 gallon bucket when the CO2 generator says to use a 2 liter soda bottle.... and i'm not sure if you know why you need hose and a fish tank pump and the rock that makes bubbles?... its because a C02 generator is really for people who have plant aquariums... people that have fish and grow their plants under water.... since the plants are underwater they need a way to get CO2 to the plants.... so basically what i'm saying is your system might need tweaking.... because with 2 cups of water, 2 cups of sugar, 1/4 teaspoon of yeast in a 2 Liter soda bottle can give me 2 weeks of CO2... why are you only getting a week with a 5 pound bag of sugar, bucket and all that other stuff? oh yeah... its a bad idea to use glue for certain plastics because of a chemical they use that really won't let the glue get a good grip... so if a CO2 buildup occurs.. it will pop your hoses out.... truthfully i have a grow cab.. which makes it suitable for using a soda bottle... so i guess it depends on the size of your area
Cheap Way to make CO2 for your grow
- Thread starter potroastV2
- Start date
weedyoo
Well-Known Member
its really just yeast eating sugar and pooping out cos
5 gal bucket this is for my whole bud room not just one plant. this mix
5lb sugar
half bucket water
3 tsp yeast
the fish pump is for sturing up the water as you may know if you shake your bottle you get more co2. that is what the bubbles do
the hoses cant not pop the co2 simply gets pushed up and out the hoses. and down on to your plant.
when the CO2 generator says to use a 2 liter soda bottle... i dont know where it says i need to make it this way.
every one makes theirs a little diffrent i learned how to make this on riu
i think what you have works.... since you're doing a room... because a 2 liter bottle is good for a plant aquarium.... but truthfully, in a plant aquarium you're trying to get the co2 to dissolve into the water and you end up losing the rest.... so i think it would work differently in a room... since the plants aren't underwater and are able to get the co2 out of the air...... this is interesting.... i know the bottle works for me cuz i have a box...but it seems a bucket would work for a room, since its a larger area..... learn something new.... so you have to do it weekly huh? i read one time that the yeast doesn't dissappear, just the sugar... and the mixture can be reactivated when you add the sugar again... is that how you do it? or you just make a whole new batch
acederrytiler
Active Member
can i use a 2 litre bottle and just put a bubbler in the top for an air lock (bubbler is whats on your mans big jar) would this be ok the co2 would come through when the pressure good enough
if you use a 2 litre bottle... you won\'t need a bubbler... pressure is automatically building up the second you mix the yeast, water and sugar.... all you need to do is drill a tiny hole in the top so the CO2 can release slowly.... and whenever you need a boost...just shake it up... but what is your area size? because i do this for a grow cab...
also...the bubbler originally is for growing plants underwater in an aquarium...the bubbler releases the bubbles into the water...
the soda bottle and the mixture is good for 2 weeks.... the first time, i put a big hole in the top because i was scared if i made the hole to small, the CO2 would build up to much pressure and pop the top.... but in reality... it just needed a tiny screw hole
also...the bubbler originally is for growing plants underwater in an aquarium...the bubbler releases the bubbles into the water...
the soda bottle and the mixture is good for 2 weeks.... the first time, i put a big hole in the top because i was scared if i made the hole to small, the CO2 would build up to much pressure and pop the top.... but in reality... it just needed a tiny screw hole
acederrytiler
Active Member
no the bubbler something to do with wine making but i think with an air lock it will keep it warmer helping the thing do its job il try both and see what happens thanks
primitive1
Active Member
damn, this is an old thread.
That would be an improvised airlock. co2 travels from the 2 liter through the tube to the open vessel of water(the halved water bottle could just as easily be a teacup), then the co2 escapes through the water surface but no oxygen can flow back through the tube into the 2 liter.
This is so the fermentation can take place. from a home brew website, "In the absence of oxygen, yeast will respire anaerobically and produce ethanol and carbon dioxide". If the top is simply open it will not work, something must be attached to let co2 escape while keeping oxygen from getting back in.
Just to note, an airlock made for a 5 gallon cooler jug costs about $2.50 at any home brew store.
Jim McColl
Member
fantastic! honestly... great information! thanks! 
aviatorstewart
Member
gonna give it a whirl - i have a 320 cu ft room - will a 2 liter bottle be enough and how expensive are 5 gallon glass jugs - thanx
b7ackspade
Member
hello , i been trying to figure out if you could use co2 but for the roots in my hydro bubble ponic set up i have, just like fish tanks use it for. has anyone tried this? i been trying to loook and read but i cant find any info or not looking in the right place. thanks yall.
Where didju read that?
jeffchr
Well-Known Member
I read that rightchere:
https://www.rollitup.org/do-yourself/162265-co2-via-yeast-right-way.html
"There is also an aerobic mode that yields no alcohol, but 3x as much CO2 and baby yeast..
C6H12O6 + 6O2 -> 6CO2 + 6H2O + more heat..."
ceasermix
Active Member
A picture would be nice