I was a first-time pool or spa owner and had no idea how to regulate or test water quality. I tried doing it another way, but my legs would itch a lot, and I seemed overwhelmed trying to stay on top of the water.
I am so glad I found this product. It was literally take it out of package, click the two halves together, throw it in the hot tub, and forget about it. Within 24 hours, I noticed how much clearer the water looked, with no foam. The irritation in my legs has never returned. This is definitely worth the money to have peace of mind and a maintenance-free spa