Roachman26 Posted January 23, 2010 Share Posted January 23, 2010 All of my bins have a 3"x6", aluminum screened, vent hole on opposing ends of the bin. Does this sound like enough? Too much? I just guesstimated when I started building them and so far it seems to work in my room. What does everyone else do for 18 gallon bins? I'm about to make some new bins up and would love some suggestions for improvement. Quote Link to comment Share on other sites More sharing options...
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