My pool water was crystal clear but the water burned your eye when swimming. I read my total alklinity was the problem. When tested the ppm read 0. So I added baking soda (arm & hammer) are instructed. I turned the pool filter turn off and the water was still. I added 13.5 lbs for 30,000 gallons of water, the water instantly turn green which I read may happen. After 2 hours I turn on the filter and ran it all night. My water is still green with an oily film on top. I backwashed the pool and recharged it with DE. I retested the total alkalinity and it is still at 0. What happened? Do I have to add shock to turn the water blue again? Can you even swim in the water now? Its 90 degree out, did the heat have anything to do with the water turning green. I do not have a pool heater and the water temperature is 80 degree. The filter is running fine and my chlorine levels are all in the OK range. The pH is low at 6.2 but I read you have to fit the total alkalinity first then the pH. What did I do wrong?
Any wisdom would be appeciated,