What algae treatment did you use? It might have had copper in it which "stains" a blueish color.
Re: DE is Blue Color
What algae treatment did you use? It might have had copper in it which "stains" a blueish color.
26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO
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