My pool is 5 days old. It was filled with spring water from a local water company.
The alkalinity started off at 200. I have been adding muriatic acid and dry acid and right now it is at 150. My pH is at 6.8 and my FC is at 4.0. My CYA is 50. From reading the info in Pool School, I know it is recommended that I keep the alkalinity at 60-90 and pH at 7.5 -7.6.
Here is my question: Since my pH is low should I raise the pH first and then lower the alkalinity or focus on the alkalinity first?
One other question: My pool water is very clear and feels great on the skin. The water is so clear you can see to the bottom in the 8 1/2 foot deep end with no problem. However, at night when I turn on the pool lights (SAM lights set to blue) I see little floaty things in front of the light and on top of the water in the shallow end. You cannot see these in the day light and you can only see them for about two feet near the light. They are very small with a few a little larger (say half the size of a dime). The larger ones look like small pieces of tissue paper. Any idea what these are and of they are normal?