Get your chlorine level up to 15 ppm and keep it there by testing and adding bleach to get the chlorine back up several times a day. Keep your filter running 24/7 and backwash it when your pressure rises. Oh, don't forget to add the dose of patience.........it took awhile to get it messed up, and it's going to take a little time and effort to get it cleaned up...but it will clear.
Janet
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