Does your Pool Professional have one of these?
C61-883338:  A Contractor's License

What is a rebar stain?

Does your pool have stains like these? If so, CALL ME!

Sometimes you will get rebar or a rust spot under the plaster that will will work its way to the surface of your pool plaster. This happens because when the shotcrete was initially shot, the rebar wasn't as deep as it should have been and the result allows chemicals in and it will begin to rust outward to give you a brown stain.

Equipped with scuba gear and special air tools, I will completely restore pools marred with unsightly rebar rust spots, broken plaster, and more within just a few hours—all while being underwater!

This was a rebar problem in a spa. The offending rebar was cut out and then patched all in 1 day and it was able to be used that evening!

Before

After