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 while treating (swim season is too short already). I'll do the bypass and treat their way as a last resort... which i am close to doing!.
Any other ways to get these growing stains off?
Chlorine and all Chems in proper range.