My husband and I stated taking over my family's pools in several apartment complexes. 5 of the 6 are beautiful! The 6th is the problem. The pool had bad metal stains, so we did an AA treatment. We added poly 60 and metal sequesters (metal free, Proteam metal magic and HASA - at different times) Things were looking pretty good, and we started to bring the chlorine level up. We could not get the chlorine to stick and after the Easter weekend, the pool was a little green. We vacuumed to waste and tried to back wash the filter. We sat in horror as the jets delivered a steady steam of maroon colored stuff back into the pool. (We have since ordered a spider gasket to fix that). Anyway, now the pool is green and everything (filter baskets etc) is stained an orange rust color. I am bringing the chlorine up to shock levels, but am concerned that we put back all the metals that we tried to pull out. Someone please advise!