Not new to taking care of pools...even removing severe algae, with that said I got caught in the chlorine non-swg pool issues everyone was having last year and still have water quality issues. After 4 months of treating, SLAM method, I had clear water and 2 days later it was back to green, turns out I had a severe case of mustard algae. Managed to kill the mustard algae (chlorine shock w/copper lowes xtra blue) and still had a filthy pool that has taken several months to get as clear as it is. Not sure where to post to get the most help on the forum I guess I should mention the allergy to chlorine (severe rashes) so I do tend to keep the chlorine levels a bit lower than most and had a family member that had a stroke so a swg is no longer an option unless it's a low level of salt.