I was out of town and chlorine level got too low and when I open the pool the water was cloudy. I began the shocking process per the forum and was wondering how long this process can take. My water is now crystal clear, but I can't seem to maintain chlorine level overnight (drops more than 1 ppm). My pool metrics are:
FC = 20 (shocking and have been shocking for four days)
CC = 0.5
pH = 7.5
CYA = 50
Alkalinity = 140
Typically, the FC level drops to 12 to 15 ppm overnight, so I assume I am still fighting the algae. How long can this process take? Days? Weeks?
Also, I was curious how much I can expect the FC to drop on a typical day with pool temp 85F, sunny skies, and multiple people in the pool for 8 hrs.
I appreciate any input