I’ve currently renovating my place and noticed a green spot on the main water line inside my apartment. I’ve did some reading and I suppose it’s oxidation, but I’m not sure if this is severe or a normal occurrence.
Do I need to be worried about leakage and any health concerns?
Should I clean and remove the green oxidised copper? Some sources mention using lemon and salt, whereas others said to use scotch brite. What would be appropriate for this situation?

