Hello All,
First post here. I got a never clod air stone a couple months ago and it has been working well. I have noticed a slow change in bubble output, which I am assuming is due to it getting dirty (very hard water where I live). So, my question, how do you clean this thing. Can the felt portion be cleaned, which is where I am assuming it is clogging. Can it be soaked in vinegar and then rinsed throughly? Do I just need to replace the felt parts?