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Hello; Last year you replied to my copper stain post. I never treated it and pledged to this year. When i opened the pool the stains were much larger and everywhere so i am back at it. Jacks number in a sock takes it off in seconds so it is time top treat the whole pool. I think i'll follow...

I did add the Jacks Blue. Thx for the reinforcement on that. The copper heat exchanger is the copper source and I do have to keep after the PH. There is no ionizer or copper algaecide in use. The dry acid: is that the same as PH down? Is there a generic I can buy to save in the pool store...

My plaster pool has lots of copper staining. A Jacks Magic test kit confirmed this (Copper test packet took the stain off right away, all other packets did nothing). My heater has no bypass and Jacks #2 requires i bypass to use their product. Also i don't want to loose the 2 weeks i may lose...