Are there any sealant that can be applied to the area of cleaned copper
? I must confess that I have absolutely no clue about plumbing.. Just
want the pipes to stop turning green again in a couple of months. The
thought of having to open the floor and walls to repipe in 5 years is
pretty scary. Hopefully after the cleaning the pipes
will not turn green for much longer.

Thanks for the assuring explanations.