We are on day 2 of super shock treatment on the pool. When testing the chlorine it's an deep yellow/orangish color. Seeing some very mild improvement.

What are your thoughts on iron in the water? Is it possible my sand is bad in the filter? I ask because a contractor was at the house today (he has a pool himself) and said it looks like an iron problem compounding the algae bloom. Starting a countdown for fall in MI!!