Thank you for your help.
I will check my tablets- I do use tablets in the chlorinator
I use baking soda to raise the Alk and Soda ash to raise the PH.
Shock with bleach.
I did put in a chemical called Bug out-
Will copper be listed on the bottle- or will it be listed as some other name?

Do you know if the copper could be leaching from an old hose- or somewhere in the filter- any ideas how to check them? How can I can tell if the copper is coming from our city water?

Any ideas on this will help- and thank you again.

Pam