I've been using the TFP method for the past two seasons with no problems.....until now. I've been using a solar cover for most of the season to keep the water warm but started noticing what I assume to be algea a week or two ago. It appears brown, the water is still clear and it's only on the bottom in spots, none on the sides, stairs, etc. I have brushed the bottom, vacuumed and backwashed but I still see it,not as much as last weekend but it's still there. It scatters like dust when touched. I got agressive in Slamming it this past Sunday. My cya is 50 and so I am keeping my FC at 20, ph 7.2 when last checked. I've been testing twice a day and sometimes it won't drop at all and then the next day it may drop by about 4. Since the sun isn't a factor I know it's still the algea. My questions are this...How long does it usually take to rid the pool of algea if the water remains clear? Is the solar cover contributing to my problem? and What else do I need to be doing? TIA
24 ft round above ground, 52 inches deep
24 ft round above ground, 52 inches deep