Best Pool Clarifier-A Complete Guide

A quality pool clarifier is the first accessory that every pool owner should own. Pool clarifiers are chemicals that are used to help clear up cloudy water. Your pool’s water will likely get cloudy when the seasons change, from winter to summer or summer to fall. Sometimes it takes the rain or snow to cause this cloudiness, but other times there’s just too much debris floating around in an otherwise healthy pool of water. If you’re dealing with particularly bad cloudiness in your swimming pool, you may want to give one of our top-rated pool clarifiers a shot.

Here are the best pool clarifier on the market.

Editor’s Pick-Pool Clarifier

Best Pool Clarifier Reviews In 2023

1. GLB 20155A Super Blue Pool Clarifier

Super Blue Pool Clarifier is the same formula as Blue Magic but with a slightly different processing technique that allows it to be more effective at varying temperature levels & range of chemical levels. It can be used in either salt or chlorine pools

Vision’s Super Blue Pool Clarifier is the most powerful blue water clarifier available. It clears cloudy water fast and prevents future hazy appearance. This easy-to-use formula is concentrated, so only a small amount is needed to treat large pools.

This powerful water clarifier is designed to clear cloudy pool water fast and maintain crystal clear, sparkling water all season long. It produces and maintains crystal clear, sparkling water without affecting pH balance or other chemicals. The highly concentrated formula is easy to use – simply add one ounce per 10,000 gallons of pool water weekly.

2. Aqua Clear Pool Products Pool Water Clarifier 32 oz

The Aqua Clear Pool Water Clarifier is a water treatment product that clears cloudy water, kills bacteria, and reduces pool chemicals. Safe for all pool types, including salt pools. This product works quickly, dissolving into the pool water to restore clarity from any cause of cloudy water. The results appear within 24 hours.

Aqua Pool Solutions Pool Water Clarifier is a saltwater compatible and powerful clarifier specially formulated to be very gentle on your pool surfaces. This product should be used in conjunction with other Aqua Pool Solutions products and works best in pools that use saltwater chlorination.

Aqua Clear™ Pool Water Clarifier is your new go-to clarifier for swimming pools. Clarifiers are great for two things: they help you clear cloudy pool water and prevent water from clouding in the first place. Apply a pool clarifier once weekly per direction to keep your pool looking blue and beautiful.

3. EasyCare FounTec Algaecide and Clarifier

The Safe, EasyCare Algaecide is safe for plants and animals but not for fish. The Fountec Algaecide clears pond and fountain water of unsightly green or brown algae by eliminating the nutrients that feed the algae. This product is perfect for use in fresh or saltwater ponds, fountains, and water gardens.

EasyCare FounTec Algaecide and Clarifier is a one-step treatment for algae control in water features. It is safe for use in interiors and exteriors, such as ponds, fountains, and swimming pools. This product will not harm fish or plants, leaving your pond looking beautiful and sparkling clean.

EasyCare FounTec Algaecide and Clarifier is a clear, colorless liquid recommended for use in pools, spas and fountains. It is a certified organic algaecide with natural zinc compounds that reduce the frequency of reapplications needed to battle algae growth.

4. CrystalClear OneFix – Natural Water Clarifier

Clear water is the key to a healthy pond or lake. Natural Pond Water Clarifiers, such as our CrystalClear OneFix, are fast-acting and go to work immediately to help your pond clear up. Spray it on the water surface and the natural bacteria in this product will clear the pond in just a few hours – no matter the cause of the water clarity problem.

CrystalClear OneFix is a liquid water clarifier and conditioner that works to keep your aquarium crystal clear, without the use of stress-inducing chemical additives. The active ingredient, SoilActive, digests suspended dead organics and keeps the water clean and healthy for all aquatic life. Use 1 ounce per 375 gallons every two weeks. Safe for all aquatic life and plants.

CrystalClear OneFix utilizes natural bacteria to digest suspended dead organics to help keep the pond balanced and the water crystal clear.

5. CrystalClear OneFix

CrystalClear OneFix utilizes natural bacteria to digest suspended dead organics to help keep the pond balanced and the water crystal clear.

Onix can be used in new or existing ponds throughout the season to restore pond clarity and water quality with natural, beneficial bacteria.

OneFix is specifically designed to start working the second it hits the water. Use once every two weeks when water temperatures are above 50°F.

How To Choose The Best Pool Clarifier When Purchasing

Vacuum, Skim, and Brush Your Pool

Start by removing significant particles from your water using a skimmer net so the clarifier can function properly. After that, manually vacuum your pool and brush your walls with a stiff pool brush.

Check and adjust the water in your pool.

Test your water with liquid test kits or test strips. When necessary, adjust your pH and alkalinity. Your alkalinity levels should be between 100 and 150 ppm, and your pH levels should be between 7.4 and 7.6.

Surprise the Pool Water

You must first shock your water if it contains algae or excessive amounts of combined chlorine (sometimes called chloramines). Any impurities in your water can be killed by shocking your pool, which adds a lot of chlorine. Depending on the algae bloom that created your hazy water, you’ll need to double or triple shock your pool.

Constantly keep your filter running.

Run your filter for several days to aid in clearing the hazy water. Once your water is clear, you can resume your usual filtering cycle.

Depending on your filter, your pool will clear up the water more quickly because you’ll be using its power to do so. D.E. Filters have the best filtering power and can quickly clear hazy water. Sand filters will take the longest, followed by cartridge filters.

Improve Circulation in Your Pool

Ensure your pool has sufficient water circulation so all the water can pass through the skimmer and into the filter system.

By aiming your return jets down at a 45° angle and all in the same direction, you can assist in churning the murky water up from the bottom of the pool to the top.

Ensure your main drain brings water from the pool’s bottom into your filter system if you own an inground pool. If you don’t have a main drain, you can use a manual vacuum cleaner as a makeshift main drain by placing it upside down at the bottom of the pool.

Add an Enhancer

It’s time to apply a pool clarifier after the shock in your pool has subsided. Read the manufacturer’s directions carefully and add the recommended amount for your pool size. If you require assistance calculating the volume of your pool, use a pool calculator. While the water clarifier is operating, keep in mind to maintain the filter running continuously.

Combines particles to make it easier for your filter to remove them, clearing hazy pool water. Let your filter handle everything! This quick-acting solution boosts filter performance for the more efficient removal of organic waste and dead algae. Directly add a clarifier to the pool. Excellent for all pools, including fiberglass, vinyl liners, concrete, plaster, and above-ground pools. Saltwater, mineral, ozone, and non-chlorine pool water are also suitable.

Retest Your Water and Clean Your Filters

Your water should be clearer after two or three days. Retest your water’s chemistry after cleaning or backwashing your filters. Use a pH decrease as necessary because some pool clarifiers may cause your pH levels to rise.

Frequently Asked Question

Does pool clarifier work?

The clarifier coagulates particles into small clumps removed by the pool filter. It’s easier to use than flocculant, but it’s not as powerful and generally takes longer to clear up your pool water. Pool flocculant, on the other hand, coagulates particles into larger clumps that sink to the bottom of the pool.

What happens if you put too much clarifier in your pool?

When you add too much clarifier to a pool, it overworks itself, making the particles too large for the filter. This reaction results in water that appears dirtier than before. That’s why your pool will look more cloudy and murky if you put too much clarifier.

How long does it take for the pool clarifier to work?

Once the clarifier has been added to your pool, turn on the pool filter and run it 24/7 until the cloudiness is gone. This can take two to three days, but swimming in the pool at this time is safe after about 20 minutes.

Is baking soda a pool clarifier?

Baking soda can work wonders in a pool. Baking soda can: Help to clear cloudy water and restore the sparkle. Spot-treat algae.

How long after shocking the pool Can I add a clarifier?

Some clarifiers are polymer based, and the shock can break up the polymer causing the clarifier to be ineffective. It’s best to shock your pool and wait a day or two before adding a clarifier.


Pool-clearing agents like clarifiers, shocks, and algaecides can help you beat back those unsightly algae blooms, but only if you use them properly. The first step is to identify which type of algae is growing in your pool – black algae or green algae. Then you use that information to make an informed decision about which treatment to use.

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