Closet brewers, bathroom fermentors, girlfriends/spouse loves your beers but hate the smell and the gases of that gritter yeast?
We need help!!
digged a bit around and found that a carbon filter w activated charcoal is good for water BUT also great for those smelly fermentation gases.
here is a photo story of how two left over 5l keg bongs, electric tape, the tube of your hydrometer, some activated carbon and filter pads (from the pet store), left-overs from the real carbon filter (swaped refrigerator quick connects to barbed tubing fittings), and some tubing, turn into a fermentation carbon filter.
At the end I plugged it to the carboy with rubberband and a bag.