I have a salt pool

I have used a couple of different Algaecide. used Black Algaetrine about 2 months ago and Phosphate Remover about 2 weeks ago. I also added pool stabilizer a week ago.

My water test from pool store came back normal. I have a gunite pool with salt system.

I am brushing with Milliard wire brush.

It seems like it will go away but then come back as in areas I do not see algae but pool is shimmy. Also some area show algae.

What else do I need to be doing?