I just bought a property with a pool one month ago, 3 weeks ago i found black algae in the pool. then pool shop sold me a bottle of algae acid to remove them, it failed.
I searching by google and found this place, tried to find the solution. And i SLAM my pool by 10 kg Chlorine powder from Bunning (AU) one 17th of Sep, after 3 days ,the black algae gone. one week the water became clearly from cloudy.
I taken a bottle of water to pool shop for text (i would buy a text kit from US). all the result is fine except FC is 16. I know it should be normal. BUT today the result is
i running pump with swg about 11 hours a day after the algae gone.
Is it anything i did wrong? i think i add too much Chlorine into the pool, it is 50000L salt water pool.
Do i need slam the pool again to reduce cc level or just waiting the fc and cc level down.
Thank you very much for your help
Sorry about my English.