Yesterday I did as you suggested plus added 24oz of HTH Algae Guard. I rarely use the algae guard, but I am frustrated.

I vacuumed, then checked FC later in day (it was still high), brushed the entire pool (I DID find some green growth on vertical wall in shallow end which is shaded), and then brushed again about 7pm.

The water started to clear about mid afternoon yesterday. This morning it was crystal clear, but I didn't look at the bottom. Today, at 6pm, the water is still crystal clear with fine gray powder (presumably dead algae). BUT, I have the same yellow brown dust in a very thin layer in the shallow end.

I brushed it again. The test strip is still deep purple for FC. I was debating adding more cal hypo shock

its funny that you mention the DE. I was wondering the same thing. the steps into the pool accumulate dust, sand, and the algae. It looks to be blown from the returns mounted in the steps. I don't notice anything around the other returns, but water is a low deeper.

Please tell me that I can add that to the skimmer and not have to crack the filter ope