Pool Chemicals High Alkalinity

pool chemicals high alkalinity
Help my pool wont hold chlorine!?

My pool won’t hold chlorine. Here is the back story. Our pollen was tremendous and it sat in the pool for a long while. We finally got it out and we got our chemicals all worked out. But the pool has remained cloudy and we can’t hold chemicals. Just to be safe we put in Metal Free today…but to no avail it would seem. What can we do??? We are running out of ideas. Ok…here are the numbers

Free Chlorine .5 (this is after putting TONS of chlorine and being high on chlorine yesterday)
Total Chlorine .5
ph 7.4
Hardness 100ppm
Alkalinity 85 ppm
Cyanuric Acid 150ppm
Total Dissolved Solids 500ppm….

Please help. I need someone who really understands to respond. Getting desperate. It is a fiberglass pool with 12,400 gallons.

Numbers are ok except for the Cl. There must be organics still in the pool eating up what chlorine you add. That or you’re shocking during the day. Try shocking at dusk. You’ll get more bang for your buck since there are no UV rays from the sun knocking out your chlorine.
It’s organic load or a filter issue. One of the two or a combination of both.

IL TRIO DINAMICO ep 4