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Test your water for phosphates. Leaves contain it and phosphates are a growth nutrient for algae. Always use a sodium bromide based algaecide when dealing with yellow algae. (Yellow/brown/mustard algae is chlorine resistant.)
Sounds like mustard algae. Usually happens after a lot of rain or warm weather.
Yellow algae, also known as mustard algae, is a type of algae that commonly grows in swimming pools. It appears as yellow or mustard-colored patches or streaks on pool surfaces, walls, or steps. It can be recognized by its slimy texture and ability to cling to surfaces, as well as its resistance to brushing and chlorine treatment.
Mustard algae is usually a sighn of heavy metals like copper in your pool water. You can spend a considerable amount of money trying to resolve the issue, but you may find that simplest solution is to empty the pool and start all over. Stay away from cheap algae removal and copper based coagulants products as they can actually create more problems . Regards Louis
You have mustard algae. Have your local pool store test for phosphates. I can almost guarantee you have them. This makes you a candidate for mustard algae. You should try a product that removes phosphates. LoChlor's Algaecide and Starver Treatment is the best.
Beacause chlorine is not being put in which is making it turn yellow :)
cause of the algae in your pool! c.s.
Yes, a pool can get orange algae.
Many people mistake "mustard algae" as sand in their pool. Does the sand briefly disappear when you run a pool brush over it? Mustard algae resettles quickly and looks very much like filter sand. We have helped many customers with this problem. Also, if there is truly sand in the pool and you have replaced the laterals, check for any leakage of air around the filter. You may hear or see cavation in the pump when it is shut off.
Well if the stain was not algae then why use an algaecide. You have to determine what the stain is or what is causing the stain then treat accordingly. AND PLEASE TRY TO CORRECT YOUR GRAMMAR.
If it is genuine 'black algae' it is very difficult to remove without emptying the pool and gouging the black algae out of the pool surface. Other algae can be removed by shocking the pool, filtering continuously and brushing walls while maintaining a good sanitizer level.
well when you leave your pool covered for the winter, you are unable to put chlorine into it. Chlorine prevents algae so to answer your question, the lack of chlorine causes algae