Im not the first person or the last that has used standard bleach as a substitute (even noted in many threads here too), i really dont think that was the issue either. I've done that for 5 years without any issue, ever. I tested the CYA, it was in fact a 62, so i've been slamming now for 15 plus days keeping at around 24 on the FC, no issue there either.
The only missing link was the sand pump. Old dirty sand. Last night i spent nearly 30 mins flushing it out, there were still a few particles coming out after 30 mins but it was clear. Left it run all night again, woke up checked the situation, still cloudy. Again this sand was never deep cleaned in 4+ seasons.
I guess at this point the only thing left to do is physically change the sand (or keep hoping the slam wins). I did also order some of the "walmart" chlorine gallons suggested above.
What are the odds if i just let the fc drop to more normal levels it will clear (due to the chlorine being high its cloudy or is that not a thing)?
Someone else
here has the same exact issue but no word on if it was resolved or how.
EDIT: i do some notes that it can take up to 20-30 days in worst case, thats a long time but could be the case here