As a newbie, mastering this new hot tub chemistry...I flunked!!! My hot tub was cloudy with an odor. I added too much dichlor, I believe, and kept the tub at 104. After a month the filter was slimy (beyond belief with crud) and dirty. I haven't even mentioned the whole tub was full of foam ( like a bubble bath)! Quarantined it! This is not an advertisement I promise. I searched for answers and read about all natural Eco one. I sent away for it and I swear, my hot tub is now clear. The water feels different too. I read I should drain the tub, purge the pipes, etc. Great advice but we have 3 feet of snow so I drained a little and added some back and cleaned the filters with their filter cleaner. Next I added their shock and eco monthly to my mess. Waited 24 hours and my water is clear. I've been adding a small amount of liquid chlorine and the tub is completely balanced! It feels different too, smoother. It is supposed to be natural. I am going to continure to research the product to make sure it is safe. For now, I am so grateful! My chemical disater is now easy to maintain. Does anyone know how it works or if it safe? I read something about all natural and enzymes but their website says it is not enzymes. Thanks in advance.