Check the listing for details. Lo-Chlor Knockdown High Performance Flocculant, 32floz/1qt, New S2. Condition: New. Listed at 13.99 USD. Lo-Chlor Knockdown High Performance Flocculant 32floz/1quart Knockdown is a high performance flocculant that drops haze-causing contaminants to the pool bottom for easy vacuuming. Drops suspended particles to pool bottomCleans and clarifies pool waterEnables easy vacuum removalEffective over a wide pH rangeUse with all sanitizer typesWorks with all pool surfaces Pool professionals demand a fast, powerful flocculant when working on tough cloudy pools. Lo-Chlor’s Knockdown, a non-alum flocculant, includes a clarifier solution to save time and effort.Knockdown drops a wide range of debris to the pool bottom where it can be easily and quickly vacuumed out. It also includes a polishing clarifier to finish the job and it won’t affect water balance. It begins working immediately and finishes the job quickly. Knockdown typically delivers high clarity overnight. New