Floc (or flocculant) is a chemical which takes all the small particles in your pool (such as algae) and settles them to the bottom. ... This method involves more work and can be time consuming, but gets rid of algae fast if done correctly.

Can you floc a green pool?

Flocculation is when a chemical, or flocking agent, is added to the green pool water. The solution causes algae particles to bind together and sink to the bottom of the pool. After the particles sink, they can be vacuumed. Shut off timer is set and valve is positioned for backwash.

How do I get rid of algae in my pool fast?