We have a 20,000 gallon in ground pool. We use Bromine. It was green at first so we have been shocking and using algaecide for two months. The filter has sandy colored residue no green. We use the aquabot and we get the same return- sandy. We are unable to maintain our bromine levels. Does this sound like discoloration of the water- which is murky greenish brown it is due to high copper now and the algae is dead?
Bromine .84 PH 7.2 Alkalinity 110 Calcium 242 Copper 0.9 Phosphates 100 Sat index 0.4. Any other suggestions?