I've been fighting algae this year for the first time and finally got it all to settle to the bottom. When I go to vacuum on filter setting it is coming back out the return and within minutes it is to dirty to see. My pool place is telling me that the algae may be too fine for the sand filter but they have not been able to tell me how to get it out. They did think that the sand may be old so I have replaced it with the same results.
I'm new to the site so I'm learning where everything is at. Below is my pool information.
5000 gallon above ground pool
hayward Sand filter
2.5 years old