I have a gunite pool. My CYA levels were past 200 and my water has turned a murky green. We tested our alkalinity and it was way high also around 210, we have tried for weeks using muriatic acid and using to bleach to keep chlorine levels up for around 10 ppm, this only lighten the water to a lighter green and lowered the level to around 180. We are tired of pumping money into a seemingly never ending solution. Was thinking the best way is to get a new start with fresh water. Our water was crystal clear in April then something went wrong. Any ideas?

Thanks