The traditional system for removing metallic stains is to add ascorbic acid to remove the stain from the pool surface and then add MetalMagic or a similar chemical to remove the metal from the water. While reading about MetalMagic the company says to try their test (found here: www.proteampoolcare.com/images/uploads/MetalMagicSpongeTest.pdf)
and then use just MetalMagic. This would simplify things as the requirements to reduce FC are not as strict and would not seem to require an Algaecide and you wouldn't need to buy ascorbic acid. Has anyone done this. Any advice?