Currently helping someone who's kids have been getting green hair from too much copper in the pool. My understanding that the main choices were either changing some water out to dilute the copper levels, or to use a chelating agent to keep the copper in suspension.
However it's been mentioned to me that I can just shock the water and the copper will come out of suspension and form into rust coloured particles on the floor that can be vacuumed out. Is that right? If so, how high do I need to take the FC to ensure it knocks the copper out of suspension?
FC is 2.7ppm
pH is 7.4
CYA is 25ppm
Copper is 1.0ppm