This is the first year that we have used the BBB method. Before this year, we were letting the pool store tell us what to do and it became quite costly! My husband is having a hard time separating from the pool store (the real truth is he is having a hard time admitting I was right about them)! He went in yesterday and bought phos free. We have has phosphates in our pool in the past. From what I have been reading, it seems that we probably do not want to add the phos free that he bought but instead properly shock the pool. The pool store had us adding 3 jugs of chlorine one time per week for the shock process and we never had any stabilizer!!! So, long story short, should we use phos free?