I have had a problem with my pool basically since it was built 5 years ago. The problem is the pool looked great all winter, I keep the filter running and all chemical levels at TFP recommended levels (greatly appreciate this site) throughout the winter, and I pay especially close attention to the FC levels (I have had black algae in the past and i don't ever want it again).
I kept the fc levels between 5-7 ppm to avoid any algae issues this last winter.
I actually had our pool completely re-done last a year ago because I could not figure out what the powdery/dust was coming from, and I thought it was actually the finish of the sculpted rock style finish coming off?
Well the first time in the pool and the same issue has come back. The pool itself looked great, clear and sparkly. Once it gets stirred up it turns cloudy. If I brush the walls it goes from crystal clear to green and I can no longer see the drains at the bottom of he pool (it's only 7 feet deep).
I am planning on doing an overnight fc test tonight, so just looking for ideas?
2 years ago I tried to look at the particles under a microscope, but i was not able to determine if it was plant like due to the low quality microscope that I have.
Is it possible to have mustard algae if the fc was always maintained (I'm very aware of fc levels) 5-7 ppm?
Here are my current levels
Thank you! Sorry for the long post...very frustrated.