What is Yellow Algae?

yellow algae in pool in Santa Rosa

What is Yellow Algae? 

A yellow algae is a form of green algae that has become resistant to chlorine and other sanitizers. Unlike green algae that floats on top of the water, yellow algae clings to surfaces, such as the walls, bottom of the pool, or on other objects like pool lights, ladders, and filters.  

Causes of Yellow Algae 

If the pH or alkalinity of your pool is off, that may be the culprit. Debris, phosphates, and pollen also can cause yellow algae, and you’re more likely to get algae in warmer climates or in areas with environmental and atmospheric changes. 

Algae in a pool can not only affect your water quality but will make it very difficult to balance and maintain your water chemistry over time. Unbalanced water can affect the lifespan of pool filters and equipment, and cost a lot of time in testing and chemicals.

What To Do If I Have Yellow Algae?

Give us a call at 707-536-1280 and ask about our pool cleaning services. We service Santa Rosa and surrounding areas and can help get your pool water crystal clear!


yellow algae in pool