have a salt system ( gold line control) My pool is basically clear but not "crystal clear" salt unit is only one season old, salt level is 3100-3300 pool is stabilized. pool is small 17,000 gal. inspected cell, looks fine. pool usuage is minimal, temp is 85ish, moderate sunlight on the pool, use solar cover.
had demmand test done at pool place, recomended 16 lbs of shock, pool got clear of course but gradually i could tell the chlorine was fading...
so i set unit to super chlorinate for 24hours, then another 8 hours at 100 setting, then 12 hours at super chlorinate then took in water sample again.. NO CHLORINE again...
did another demmand test ( about 3 weeks from first one)and again called for 16 lbs of shock...
whats eating up my chlorine?