Drop 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. It’s effective over a wide pH range, safe for all sanitizers and pool surfaces, and even includes a polishing clarifier to finish the job. Product Highlights: Drops suspended particles to pool bottom for easy removal Works in hours — often overnight Reduces filter strain by clumping debris out of circulation Includes a polishing clarifier for extra sparkle Effective across wide pH levels Compatible with all sanitizers and pool surfaces Made in the USA Let’s keep Florida blue and beautiful.At Chlor-Dash, we’re committed to doing our part for the planet — and our own backyard. When you return your empty bottle, we’ll make sure it’s properly recycled, keeping plastic out of landfills and waterways. As a thank you, we’ll give you a discount on your refill! It’s a small step that adds up — for your pool, your wallet, and the community.Just select “Yes” under “Returning an empty bottle?” to claim your savings. Please note: your empty bottle must be left out and accessible for pickup at the time of delivery to qualify for the discount.
