I have a 24 foot above ground pool. Two weeks ago we started seeing what appeared to be patches of sand on the floor . If you try to touch it or vacumn it up it turns to dust and creates no cloudiness at all, the pool is otherwise completely clear.
For 4 nights we cleaned the floor and vacuumed on waste and the next day it would be right back.
We then assumed it was mustard algae and slammed it two nights in a row. Some of them now have a grey border but regardless of how great it looks after a vacumn, it comes right back and more the next day.
2nd picture
For 4 nights we cleaned the floor and vacuumed on waste and the next day it would be right back.
We then assumed it was mustard algae and slammed it two nights in a row. Some of them now have a grey border but regardless of how great it looks after a vacumn, it comes right back and more the next day.
2nd picture