I use 4" airstones (in buckets), and sometimes they hardly even work anymore after one grow. What is the best way to clean them, or keep them going during flowering?

SN
SpaceNeedle Reviewed by SpaceNeedle on . How do YOU clean your AirStones? I use 4" airstones (in buckets), and sometimes they hardly even work anymore after one grow. What is the best way to clean them, or keep them going during flowering? SN Rating: 5