Mustard algae are a common type of algae found in swimming pools. As with other types of algae, mustard algae is typically the result of bacteria combined with stagnant pool water. While it doesn't pose a risk to health, yellow algae creates a slimy film on the pool walls and can potentially cause staining if prompt control measures are not taken. Yellow Treat is one of many products that can effectively take care of yellow algae problems in a pool.
Measure the appropriate amount of Yellow Treat for the pool. Use 5 oz. of Yellow Treat for every 10,000 gallons of water. For instance, if it's a 25,000 gallon pool, it takes 12.5 oz. of Yellow Treat to kill the algae.
Pour the Yellow Treat into the pool, directly over the drain. Pouring over the drain will cause the Yellow Treat to flow through the pump and circulate in the water more quickly.
Turn on the pump and let it run for at least an hour to allow the Yellow Treat to incorporate itself throughout the water.
Repeat the process again if the yellow algae return. Shocking the pool may be necessary if the first Yellow Treat application is unsuccessful.