It's been a while since my last visit to my local pool store due to using BBB. I needed some acid and I decided to pick up a pack of scum balls. Upon check out, the cute gal suggested that I look at Pool Perfect. Upon reviewing the container, I decided to give it a try. I am a strong BBB user (from the very beginning) and I have not used any other items in my pool outside of the BBB routine. My concern in using this product, am I doing more harm then good? or am I doing any good? I am looking forward toward your advise!