Best Pool Clarifiers & Enzymes of 2025
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Pool clarifiers and enzymes are chemical additives that help to maintain a clean and clear swimming pool. Clarifiers work by causing tiny particles in the water, such as dirt and debris, to clump together and sink to the bottom of the pool where they can be easily removed. Enzymes, on the other hand, break down organic matter such as oils and lotions that can accumulate in the water and cause cloudy or discoloured water. By using these products regularly, pool owners can reduce the need for excessive chlorine use and keep their pool looking and feeling great all season long.
At a Glance: Our Top Picks
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Top 10 Pool Clarifiers & Enzymes
Pro-Kleen Spa Clarifier for Sparkling Water
The Pro-Kleen Spa Clarifier is designed to enhance your spa experience by effectively binding small particles of dirt together. This helps you achieve sparkling and clear water, making your hot tub more inviting. By improving filter performance and efficiency, it ensures that your spa water remains clean and fresh. Using it is simple; just add two caps weekly to prevent dull and cloudy water, giving you peace of mind and a more enjoyable soak.
ULTIMA-PLUS XP Spa Water Clarifier 5 Litres
The ULTIMA-PLUS XP Clarifier is designed to transform your hot tub water from cloudy and dirty to crystal clear. Its unique formula binds small particles of dirt together, making it easier for your filter system to remove them. This means you can enjoy a clean and inviting hot tub without the hassle. With just two capfuls needed per use, it is incredibly simple to add to your water, ensuring that you spend less time on maintenance and more time relaxing. Suitable for all hot tubs, pools, and spas, it’s a convenient solution for clear water.
Clearwater CH0009 Water Clarifier for Pools
The Clearwater CH0009 Clarifier is a fast-acting solution designed for hot tubs, swimming pools, and paddling pools. It effectively treats cloudy or dull water caused by dead algae, skin cells, dirt, and grime, ensuring you enjoy crystal clear water. By binding tiny particles together, it transforms unhygienic environments, allowing your filter to work more efficiently. Easy to use, you simply pour the recommended dose while the pump is on, making maintenance hassle-free for you.
Cleenly Hot Tub Water Clarifier - 5 Litres
The Cleenly Water Clarifier is a high-performance solution that transforms cloudy and dull hot tub water into a sparkling oasis. With its unique properties, it effectively binds small dirt particles together, making it easier for your filter to catch them. By simply adding two caps to your spa water once a week, you can significantly improve the clarity and hygiene of your water. This product not only enhances the appearance of your hot tub but also boosts filtration performance and efficiency, ensuring a more enjoyable experience for you.
ClearSpa Clarifier for Hot Tubs and Spas
ClearSpa Spa Sparkle is designed to restore sparkling clarity to your hot tub or spa water. By adding 25ml per 1000 litres, you can easily treat cloudy water as the product helps small particles combine and clear up the water. This clarifier is particularly useful for ensuring your spa or jetted pool remains inviting and pleasant for use. With ClearSpa, maintaining clean and clear water becomes a simple part of your spa care routine.
ClearSpa Scale Inhibitor for Pools and Spas
The ClearSpa Scale Inhibitor is specially formulated to remove minerals and dissolved metals from your spa, hot tub, or swimming pool water. If left untreated, these elements can lead to scale deposits and unsightly stains on surfaces and equipment. By incorporating this product into your weekly maintenance routine, you can enjoy cleaner, clearer water. Simply add 100ml per 1000 litres while the circulation is running, ensuring optimal effectiveness and convenience for you.
Jolly Gel Swimming Pool Flocculent (8 Cubes)
The Jolly Gel Flocculent is an essential product for maintaining your swimming pool. It effectively removes phosphates, which can lead to algae growth, ensuring a healthier swimming environment. With its ability to improve water clarity, you can enjoy crystal-clear water that enhances your swimming experience. This product works quickly, typically within a few hours, allowing you to see results without long waits. By using this flocculent, you can save time on pool maintenance and enjoy more time swimming.
Jarder Hot Tub Water Clarifier 5L for Clean Water
The Jarder Water Clarifier is a specially designed solution for eliminating cloudiness in your hot tub, pool, or spa. By adding just 2 capfuls each week, you can maintain optimal clarity and water quality. This product is versatile and can be used in all types of water features, ensuring a safe and gentle experience for your skin. It effectively targets and removes the root causes of murky water by merging small particles, making them easier to filter out for a sparkling clean finish.
Bio Ouster Weekly Cold Plunge Treatment
The Bio Ouster Cold Plunge is a versatile 3-in-1 water treatment that combines a cleaner, clarifier, and softener. This professional-grade formula ensures your cold plunge water remains crystal clear and free of unwanted build-up, providing you with peace of mind during each use. Suitable for all types of cold plunges, whether acrylic or inflatable, it offers convenience without the need for draining. With just a simple weekly application, you’ll enjoy consistently fresh water, making your ice baths more enjoyable and hygienic.
ULTIMA-PLUS XP Spa Water Clarifier 1 Litre
The ULTIMA-PLUS XP Clarifier transforms your hot tub water from cloudy and dirty to crystal clear quickly. Its unique formula binds small dirt particles together, allowing your filter system to remove them easily. This means you can enjoy clean water without hassle. Simply add two capfuls to your water, and you will see results in no time. Suitable for all hot tubs, pools, and spas, this product makes maintaining clear water simple and effective.
Frequently Asked Questions (FAQs)
1. What do enzymes do for pool water?
Enzyme treatments can be used in pools to help reduce such scum and prevent unattractive foaming. When paired with surfactants, enzymes can also aid in cleaning contaminants from the bottom of the pool. (The surfactants draw contaminants to the surface, where the enzymes can do their work.)
2. How long do pool clarifiers take to work?
If your pool is just mildly cloudy and you are not in a rush to clean it out, a clarifier may be your best bet. A clarifier requires less work and less water but can take to two to three days to achieve the results you are looking for.
3. Do pool clarifiers work?
In a nutshell, pool clarifiers are “mild” versions of flocculants. They're great for mildly cloudy pool or if you have a silt problem that your filters just can't catch. What they do is they bind to these tiny particles to increase their size, allowing your pool filter to catch them.
4. Does pool clarifier raise pH?
Maintain proper water balance and chlorine levels following treatment. Some clarifiers may increase pool pH levels.
During our pool clarifiers & enzyme research, we found 158 pool clarifiers & enzyme products and shortlisted 10 quality products. We collected and analyzed 50,792 customer reviews through our big data system to write the pool clarifiers & enzymes list. We found that most customers choose pool clarifiers & enzymes with an average price of £19.89.
The pool clarifiers & enzymes are available for purchase. We have researched hundreds of brands and picked the top brands of pool clarifiers & enzymes, including Pro-Kleen, ULTIMA-PLUS XP, Clearwater, Cleenly, ClearSpa.
Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.