Well Crud. I just noticed at the top of the pool calculator there is a suggested shock level of 15 ppm but at the bottom there is a line that says suggested shock level for mustard algae is 25. Guess I will slam the pool again this weekend.
linen said:I think we are leaning toward this not being MA from what you shared so far. I would see if you can vacuum it up. If the filter is not catching it, try a sock on the return.