I purchased a used hot tub a year ago and the salesman encouraged me to switch to SilkBalance. Using SilkBalance is much easier than what we were using. We also had issues getting our water balanced. I had almost given up on using any hot tub because how my skin would itch after being in it. Now with SilkBalance the water smells better and my skin does not itch and feels softer than ever before. Yay for SilkBalance!