ghengis

Looks to me as though your air line is loose in the holes. Yes, it might feel tight, but that type of air hose is quite stiff and seals poorly against the holes you've made. Grab some proper silicone tube, and ensure it's in there real tight. Also, diss the check valve, you do not need it. And use brown sugar...

maldrien

Yeah I am definetly getting a leak somewhere. I'll redo the hole thing in the week-end. I'll also get that aquarium safe silicone.

Instead of using those cheap 2L, I'll try with a 3.89L tropicana juice bottle.


Why should I diss the check valve? I've currently got one between the "muck guard/ bubble counter" bottle and each 2L and one between the "muck guard/ bubble counter" bottle and the aquarium. Isn't a security?

_chicken_

I used some stuff called "Household Goop" (or something like that). It worked better than silicon, which didn't seem to adhere too well to the plastic lid.

If your bottle of yeast solution is below tank level, you should have a check valve to prevent tank water siphoning out.

ghengis

You can keep the check valve if you like... I just see it as another place for a possible leak to occur, and in my personal opinion, there is no need for it... I just feel that if you ended up with a siphon situation draining your tank, you'd only lose enough water to fill your CO2 bottles and tubing, and the siphon would stop.

Again, just personal opinion.

Bettatail

two days ago, I setup mine
started with 120f degree water
3 cup sugar
3 cup water
mixed well, then,
2 tsp yeast

first ten minutes after the adding the yeast, bubbles streamed out, didn't know why it came out so quick, supposed to be at least several hours before bubbles appear, checked the receipt again, to much yeast...

don't expect my first setup last for two weeks...

John LeVasseur

Sounds like you might have leaky bottles. Also be very careful with any extremes in temperatures. Yeasts are living things and as with many organisms, extreme or rapid changes in temperature can shock yeasts.

Another thing, the length of tubing can make a difference, but only a very small amount and only with very very long lengths. So seeing your lengths I do not think it is that.

I agree with genghis on the tubing. The harder polypropylene type like you are using does not seal as well as the soft sqwishy green silicone type. But I disagree with the check valve issue he mentioned. The check valve is to prevent siphoning yes, but mainly its about maintaining consistant pressure in the system.

Just my 2c

Ummm ... Junior member. Man I have title envy!