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Discussion in 'Bongs, Dab Rigs, Bubblers, Water Pipes' started by King_Life, Feb 14, 2014.
Hey, how dirty is dirty for a carbon filter?
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Technically, carbon is "spent" where there is breakthrough (when you can smell it). If it has a cover wash it and see if it helps. If the carbon is clogged and there isn't enough air flow, then the filter is done.