I'm assuming this is yellow mustard algae...right? or dead algae parts or pollen?
It's yellow. When I brush it off the sides and bottom of the pool it turns into a dark yellow dust and then diffuses into the water (making the water very slightly cloudy). Next day it's back coating everything.
Start happening when the temperature on the pool went from 70 to 80 degrees with the addition of a solar pool cover and solar heating.
Suggestions for removal?