New to the site. I’ve had a pool for most of my life even growing up. Installed our first in 1981. I see lots of negative on PermaSalt we switched ours a few years ago after lots of research and knowing that cooper kills bacteria it’s funny because we use a cooper cleaner to kill COVID 19 at work. But most people I see aren’t checking chemicals?!? Even the pool store that sold the thing to us said to check all chemicals as it’s important to keep your pool balanced still. We keep everything WNL including cooper. No issues with green hair, or algae since I figured out the proper setting on the PermaSalt is 2 for our pool size. But I don’t use their crazy expensive chemicals I use regular shock (powder) and only shock as needed not every other week. I use the same chemicals I used before as theirs are the same ingredients just a name on the package. In all honesty I found I don’t spend as much on chemicals using less but keeping everything balanced still. I see lots of miss information on PermaSalt on here. Guessing because they’ve not used it and don’t understand they still must maintain balanced chemicals. Yes cooper is an excellent source to kill viruses and bacteria but it doesn’t do this alone. You still need chlorine. It why they have you add chlorine to your pool.