in my sink, silver metal has turned a bright teal/green... what is it and how do i get rid of it?

Answer 1

It sounds like a metallic reaction like when copper gets a green patina because of weathering.

If the sink is stainless steel, try a s/s or copper cleaner. Both are non abrasive and come in a powder form.

Answer 2

Sounds like limescale and corrosion. Try some tarnex cleaner. Works great for silver, bronze and copper. :)