Mustard algae continues to be a persistent problem for PHMB pools. Current algaecides are not eliminating the problem successfully, especially in the southern region of the U.S.
Algidefense is an algistat that when added to the pool at opening and maintaining a monthly dosage will keep mustard algae away all season. The continual use of the Baquacil 3 Step Program is important to keep your pool clear and clean the entire season. This product should be used along with a Baquacil Algicide or CDX.