I have a 5k gal above ground with large cartridge filter and 2 stage pump (1hp & 2hp). I took a sample to Leslie (monday 9 june) for confirmation of my own results using a Taylor kit:
Water very clear and bright
ok Chlorine 1 & 1
low pH 7.0
low alkalinity 80
OK Cyanuric 60
low calcium hardness 70
they provided additional tests
High Phosphates 1000
so they had me use metal free and it caused the water to turn slightly milky. Called them and the had me to add another 8 oz. Told me not to correct pH or Alkalinity and not to chlorinate until we got the copper out...this continue for 3 days, taking sample in each day getting the same copper readings...by now the chlorine went to 0. I called Natural Chemistry, the maker of Free Metal and they said that it was only a chelating agent and the copper readings would not change. I shared this with the tech at Leslie and he couldnt believe it.
He had me to adjust my alkalinity with sodium bicarbonate and it is now 110, but the milkyness was still there.
Yesterday, Shocked with 1/2# chlor bright (sodium diclolor s tra dih 99%) and oxidized with 1 #pool breeze (potassium monopersulfate 44.7%) and 1# Fresh'N'Clear (potassium peroxymonosulfate 38%) , and attempted to alter pH.... added 1.5 lbs sodium carbonate.....After 4 hours, no change to pH and no chlorine reading and still slightly milky, so they had me to add 4 oz Ultra Bright clarifier "blend of polymers" ....that did not do anything
I used the other half of the 1lb bag and put to 3" tabs in the skimmer...and added another 1.5 lbs sodium carbonate
This morning I had 3&3 (total and free), and pH of 7; took sample to Leslie's and they confirmed my own test readings
pH still 7.0
they also tested
Hardines: now 120?
Phosphates : now 500 ( but i think this diff is test strip reading variation)
They had me to add an algae control (poly[oxyenthylend(dimethylimino)ethylent(dimethyliminio)ethylene dichloride] and that is when my pool went totally milky...cant see the bottom of pool, they also had me to add 2 lbs of sodium carbonate
Now 4 hours later I have totally milky water with, ok alkanlinity, 7.0 pH and chlorine at 1 & 1