wood air stone skimmers

[KevinK]

ok so now as we know thy are great, how often do you replace the stones, or do you sand them off a bit for a nother few weeks.

only down side I would considder is the nois of the air pump.

I used a 40W comp. to feed my needel W. with air, as my skimmer is tall, and hate the sound.

gust ordered a laguna 2900 to build a mesh wheel, thy should handel the suction of air, so I loos the compressor.

however you never know in the future, so always interested to find out how long the w. stones last