As my latest batch is already quite the experiment, I decided to go even a little further and not use a traditional bubbler to vent off CO2 from my bucket this time, but opt for a keg to do that.
The rubber seal in hole of the bucket‘s lid takes a 9.5 mm hose snugly, which connects to the gas intake of a keg filled with a good 5 litres of disinfectant. The keg’s liquid out has a line attached to go into the depicted 5 litre can.
This way, at the end of fermentation, I’ll have a sanitised keg & can, and the keg is already full of CO2. Also, should I experience suckback from changing temperatures (mind you, my setup lives in my garage), there is a buffer of CO2 in the keg for that, and the line into the can is the one I use to package from the bucket, so it’s nice that it gets sanitised along the way too.
What do you think?
evasive_chimpanzee@lemmy.world 4 months ago
I just did the conversion, and 1 psi = 70 cm h20. That means you only need less than a psi to get the sanitizer moving. I think the bucket can likely hold that. You might want to add weight to the lid to make sure there’s no leakage from the outside edge of the bucket.
Aarkon@feddit.de 4 months ago
Thanks for the calculation! It didn’t cross my mind to roll the numbers, that’s quite reassuring.
Thinking about everything now, I think I should elevate the can to the level of the liquid post of the keg, to avoid a siphoning effect where all the sanitiser goes through the line in one go once it gets into motion. 🤔
evasive_chimpanzee@lemmy.world 4 months ago
That probably shouldn’t happen, cause it would pull a vacuum on your beer (wonder what effect that would have). It might be able to pull a siphon for a short time, and then cut off. You would then have like an oscillation of pressure on your beer which probably isn’t ideal. Definitely a good move to put the can higher.
I wonder if there’s a good way to prevent any siphoning from going the other way.