37,000 gallon gunite pool. Recently switched to salt water. Water is clear, but has a slight green haze that can be seen at night with light on. I don't have a good test kit yet, but testing with various strips and at the pool store. pH and alkalinity are good, and stabilizer is around 50. But FC isn't holding. This morning I put 9 bottles (121 oz) of 8.25% bleach in at 6:30 am. This was based on the pool calculator, trying to get FC to 15. Reading on strips was off the chart. By noon same day, FC was 0. Added 9 more bottles. At 4:30 pm today, FC is back to 0. *** is happening? Did I do my math wrong? 18 bottles in less than 12 hours, gone. Before I buy every bottle from walmart again, hoping someone can provide some advice.