Just cleaned my DE filter and was surprised to see the DE was blue in color . Wondering if this is something to be concerned about or a sign of a issue? I have used some black algae treatment this summer which was a deep blue in color .But would be surprised this would have turned the DE this color. Any thoughts?
Blue DE
- Thread starter gfritz1
- Start date
Sounds like a logical choice for the cause. Do you know if this treatment contained Copper? Merely curious, and notifying that's the reason, but wondering. I may have missed it here, but I can't say I recall hearing about Blue DE before.
You probably used something like Algae Kill II, which is a deep blue -- looks like food coloring -- and contains lots and lots of copper.