Have 27' Soltice above ground pool with sand filter. I am guessing it has 24,000 gallons of water. I can not get the green tint out of the pool! Yesterday I put 6 gallons of bleach in and scrubbed the walls and floor down also back washed. Now today we are having a flooding rain in KY so I will have to pump alot of water out. After I pump the water out I was going to put borax in because my PH level is so low it is not reading on the 4 in one test strips. Any help would be appreciated! Thank you!