Hello everyone - I've been having issues with passing the OCLT. This is my 4th night failing despite following it almost exactly. I've added over 20 gallons of
10% sodium hypochlorite and my results haven't even really been improving, but the pool itself looks crystal clear. I washed out the cartridge filters completely, and I took apart and cleaned the lights and the drains in the spa that I saw some algae growth behind. I've been brushing and vacuuming every day. But every night I've been losing about 4-5ppm of free chlorine. For example, I tested it this night and had 20ppm chlorine at 8:00pm, and only 15 at 12:05am. What else am I doing wrong? Could it be from the leaves and other junk being blown into the pool due to crazy winds lately?
17,000 gallon pool
pH: 7.4 (from before bringing the chlorine high)