BioGuard Algae Complete Dual-Action Algaecide

Delivery was OK and timely.

Added Bioguard Algae Complete to my 20,000 gallon in ground pool and circulated the water prior to closing for the winter. Although the bottle states that it is non-foaming, a small amount of foaming happened after adding it and operating the pump/sand filter system. The effectiveness of the Bioguard algaecide will not be evident until the pool is uncovered in the spring.