Knockdown High Performance Flocculant Returning an empty bottle?:Yes and odorless

and odorless

Lo-Phos Max supports cleaner

and fine particles

Effective across wide pH levels

Small but mighty for stubborn algae spots

Knockdown High Performance Flocculant Returning an empty bottle?:Yes and odorlessDrop unfilterable debris for clear water. Fast. When clouds of debris make your pool look less than perfect, Knockdown delivers. This high performance, non alum flocculant binds fine particles into heavy clumps that sink to the bottom so you can easily vacuum them away. Unlike clarifiers that slowly burden your filter, Knockdown works fast with the pump off, restoring crystal clarity overnight. Its effective over a wide pH range, safe for all