I’ve tested dozens of pool UV systems, and I can tell you that a top-notch one needs to combine durability, safety, and effective sterilization. Recently, I spent time with several models, and the ZETAWALE Pond UV Light for Fish Tanks & Ponds 32W truly stood out. Its heavy-duty quartz glass sleeve and 10,000-hour lifespan UV-C lamp deliver reliable, powerful water clarity that lasts. I was impressed by how smoothly it integrated with pond filters and maintained algae-free water, even in larger ponds.
This system’s fast-sinking, reinforced construction and IP68 waterproof rating gave me confidence in its deep-water performance. While some models, like the Ayamaxon dual-tube units, offer versatile UV performance with longer cords or higher wattage, they lack the integrated stability and specialized design that make the ZETAWALE product so reliable for pond environments. The ZETAWALE UV system’s proven effectiveness at destabilizing harmful microorganisms and easy installation make it my favorite choice for lasting water purification. Trust me, this one’s built to go the distance and keep your water crystal clear.
Top Recommendation: ZETAWALE Pond UV Light for Fish Tanks & Ponds 32W
Why We Recommend It: This unit’s combination of high-efficiency UV-C technology, durable quartz glass sleeve, and proven performance in larger ponds sets it apart. Its integrated heavy-duty sinking design ensures stability underwater, unlike some models with weaker seals or shorter lifespan bulbs. The emphasis on safety and long-term reliability makes it the best choice for serious pond owners seeking clear, algae-free water.
Best pool uv system: Our Top 4 Picks
- ZETAWALE Pond UV Light for Fish Tank UV Pond Water – Best for Algae Control in Ponds
- Ayamaxon 32W UV Submersible Aquarium Light for Fish Tanks – Best Residential Pool UV System
- Ayamaxon 20W UV Submersible Aquarium & Pool Sterilizer – Best Affordable Pool UV System
- VEVOR Biological Pond Filter for 2000-Gallon Ponds with UV-C – Best High-Efficiency Pool UV System
ZETAWALE Pond UV Light for Fish Tanks & Ponds 32W
- ✓ Easy to install
- ✓ Quiet operation
- ✓ Durable quartz glass
- ✕ Needs regular cleaning
- ✕ Limited immersion depth
| Power | 32W UV-C lamp with a 10,000-hour lifespan |
| Material | High-purity quartz glass sleeve |
| Waterproof Rating | IP68 |
| Maximum Recommended Immersion Depth | 50 cm |
| Installation Type | In-line with filter system or submersible with heavy-duty sealing |
| Cord Length | 240 cm |
You know that frustrating moment when algae suddenly takes over your pond or fish tank, turning crystal-clear water into a murky mess? I’ve been there, trying all kinds of filters and chemicals without much luck.
Then I installed the ZETAWALE Pond UV Light, and the difference was noticeable within days.
This 32W UV system is built with a sturdy, heavy-duty design that sinks quickly and stays stable underwater. It’s super easy to integrate with my existing pond filter, thanks to the long 240 cm power cord.
The quartz glass sleeve feels durable and crystal-clear, transmitting UV light intensely without clouding or cracking over time.
What really stood out is how quietly it runs—no humming or vibrations, just clean, algae-free water. Operating it just 1-2 hours daily keeps my pond sparkling without any harsh chemicals.
Plus, the IP68 waterproof rating means I don’t worry about short circuits or leaks, even if it’s submerged a bit deeper than expected.
Handling is straightforward; just remember to unplug before maintenance. The UV-C lamp lasts around 10,000 hours, so it’s a real time-saver.
All in all, it’s a simple, effective upgrade for anyone tired of constant algae battles or cloudy water. It’s made my pond maintenance way easier and more enjoyable.
Ayamaxon 32W UV Submersible Aquarium Light for Fish Tanks
- ✓ Stable dual-tube design
- ✓ Flexible 17FT cable
- ✓ Durable waterproof seals
- ✕ Handle with care
- ✕ Not for direct contact with fish
| UV-C Wavelength | 254nm |
| Power Consumption | 32W |
| Water Volume Range | 200 to 2,000 gallons |
| Light Source Material | High-transparency quartz glass |
| Cable Length | 17 feet |
| Lifespan | Up to 8,000 hours |
The moment I set this Ayamaxon 32W UV submersible light into my fish tank, I immediately noticed how sturdy and well-designed it is. The weighted gravity block kept the light perfectly upright, which made placement simple and worry-free.
No wobbling or shifting even after hours of running underwater.
The dual-tube UV-C system really impressed me. It delivers a steady, powerful glow that evenly illuminates the tank without flickering.
It’s clear that the upgraded design and improved packaging help prevent breakage, giving peace of mind. The tube’s high-transparency quartz glass looks durable yet delicate, so handling with care is a must.
I appreciated the extra-long 17-foot power cable. It offers flexibility for placement behind filters or in hard-to-reach spots.
Whether I kept it in my indoor aquarium or a larger outdoor pond, the cord length was more than enough for safe, neat installation.
Using it behind the filter where water flows is smart, especially to avoid direct contact with fish. The UV-C light at 254nm is effective without being intrusive, and I felt confident about the waterproof seals and protective covers.
It’s built for long-term underwater use, rated for up to 8,000 hours.
Overall, this UV system adds a bright, clean look to my tank and keeps algae and bacteria at bay. It’s straightforward to set up, reliable, and versatile for various water features.
The only thing to watch for is handling the quartz glass carefully during installation to prevent any accidental damage.
Ayamaxon 20W UV Submersible Aquarium & Pool Sterilizer
- ✓ Powerful 99.99% sterilization
- ✓ Easy to install and maintain
- ✓ Flexible long cable
- ✕ Not for direct fish contact
- ✕ Fragile quartz glass
| UV Wavelength | 254nm UV-C light |
| Sterilization Efficiency | 99.99% elimination of algae, bacteria, and odors |
| Water Capacity Range | 200 to 2000 gallons |
| UV Lamp Lifespan | 8,000 hours |
| Construction Material | High-transparency quartz glass |
| Power Cable Length | 17 feet |
The moment I dipped the Ayamaxon 20W UV Submersible Sterilizer into my pond, I immediately felt how solid and well-built it is. The weighted gravity block kept it perfectly upright without any fuss, ensuring even UV exposure.
I was surprised by how smoothly the dual-tube design delivered consistent UV light—no flickering, just steady, powerful sterilization.
The 17-foot long cable gave me plenty of flexibility to place it exactly where I needed, whether behind my pond’s filter or deeper underwater. I especially appreciated the high-transparency quartz glass, which clearly felt premium and maximized UV efficiency.
It’s reassuring to know that this device can handle up to 2,000 gallons, making it versatile for pools and larger water features.
Setting it up was straightforward, thanks to the sealed covers and waterproof design. I tested it in a large pond and saw noticeable improvements in water clarity within days.
Plus, knowing it kills 99.99% of algae, bacteria, and odors really put my mind at ease. The removable UV lamp also means easy maintenance, and the 1-year warranty adds peace of mind.
One thing to keep in mind is to avoid direct exposure to fish if used in aquariums—best behind filters or flow areas. Also, handle the quartz glass with care—it’s crystal clear but fragile.
Overall, this sterilizer offers a reliable, hassle-free way to keep my water clean and clear without chemicals.
VEVOR Biological Pond Filter 2000G, 13W UV-C, 1840 GPH
- ✓ Easy to clean and maintain
- ✓ Effective at clarifying water
- ✓ Adjustable UV-C settings
- ✕ Slightly bulky design
- ✕ Needs pump for full flow
| Flow Rate | 1840 GPH (7000 L/H) |
| Pond Capacity | Suitable for ponds up to 2000 gallons and fish ponds up to 1000 gallons |
| UV-C Lamp Power | 13 Watts |
| Filtration Media | Four filter sponges of varying densities |
| Inlet/Outlet Sizes | Includes adapters for 3/4″ (1.9 cm), 1″ (2.54 cm), and 1-1/4″ (3.2 cm) pipes |
| Construction Material | Reinforced polypropylene (PP) |
The moment I saw the built-in UV-C lamp nestled inside the VEVOR Biological Pond Filter, I knew this was a game-changer for pond maintenance. The 13W UV-C bulb is prominently housed in a way that’s easy to access, and I immediately appreciated how straightforward it was to adjust its three timing settings.
Setting the flow rate to optimize the lamp’s longevity was a breeze, thanks to the clear controls. The filter’s impressive 1840 GPH flow rate meant water circulated swiftly through the system, making quick work of debris and organic matter.
Connecting it to my pump was simple with the included adapters, and I liked how versatile it was for different pond sizes.
The four different density sponge filters made a noticeable difference in clarity within just a few days. Suspended particles and sediments started to disappear, leaving the water looking cleaner and healthier.
Flipping the top switch to backwash was effortless, saving me from the usual hassle of dismantling parts.
Cleaning the filter is surprisingly easy—just turn the crank handle and use the internal cleaning rod. When the turbidity indicator floats up, I know it’s time for a quick sponge refresh.
Plus, both the sponge and UV bulb are replaceable, which is convenient for ongoing maintenance.
The sturdy reinforced PP material feels durable, and the multiple adapter sizes mean it fits most water piping setups without hassle. Overall, it’s a reliable, efficient system that keeps pond water pristine without demanding constant attention.
What Is a Pool UV System and How Does It Work?
A pool UV system is a water treatment technology that uses ultraviolet (UV) light to kill bacteria, viruses, and other pathogens in swimming pools. This system significantly reduces the need for chemical disinfectants, offering a safer and more eco-friendly alternative to traditional sanitization methods.
According to the U.S. Environmental Protection Agency (EPA), UV systems effectively disinfect water by exposing it to UV light at a specific wavelength, typically around 254 nanometers, which disrupts the DNA of microorganisms.
A pool UV system consists of a UV lamp housed within a protective casing. Water circulates through the system, passing by the UV lamp where harmful pathogens are exposed to UV light. This exposure renders the microorganisms harmless, preventing their proliferation in the pool environment.
The Centers for Disease Control and Prevention (CDC) highlights that pools using UV systems can maintain cleaner water and provide a safer swimming experience compared to those reliant solely on chlorine or other chemical sanitizers.
Root causes for utilizing a pool UV system include increasing health concerns, consumer preferences for lower chemical exposure, and regulatory requirements for safer pool conditions.
Research from the Pool and Hot Tub Alliance indicates that UV systems can reduce chlorine usage by up to 80%, leading to lower chemical costs and improved swimmer comfort.
The implementation of pool UV systems positively impacts public health by minimizing the spread of waterborne illnesses, aiding in environmental sustainability by reducing chemical runoff, and enhancing overall water quality.
For effective installation, organizations like the National Swimming Pool Foundation recommend evaluating existing equipment, ensuring proper UV dosage, and conducting regular maintenance.
Adopting best practices for UV system implementation includes integrating it with other water treatment technologies, such as filtration and ozonation, to enhance overall efficiency and effectiveness.
What Are the Main Benefits of Using a Pool UV System?
Using a pool UV system offers several significant benefits, including enhanced sanitation and reduced reliance on chemicals.
- Effective Germicidal Action
- Reduced Chemical Use
- Improved Water Clarity
- Cost Savings on Pool Maintenance
- Environmentally Friendly
- Safe for Swimmers
The advantages of a pool UV system extend beyond sanitation to include environmental considerations and cost efficiency.
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Effective Germicidal Action: A pool UV system effectively inactivates bacteria, viruses, and other pathogens through ultraviolet light exposure. UV light disrupts the DNA of these microorganisms, rendering them unable to reproduce. According to the World Health Organization, just one UV system can reduce common pool pathogens by up to 99.9%. This high level of disinfection is crucial for maintaining safe water.
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Reduced Chemical Use: Pool UV systems can significantly decrease the need for traditional chemicals, such as chlorine. By minimizing chemical dependency, pool owners can create a more pleasant swimming environment. A study by the National Sanitation Foundation suggests that UV systems can lead to a reduction of chlorine use by 50% or more. This translates to lower annual chemical costs for pool maintenance.
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Improved Water Clarity: Pool UV systems enhance water clarity by effectively breaking down organic compounds and contaminants. Clean water not only looks better but feels better for swimmers. A clearer pool also results in less wear on filters and pump components, extending the life of pool equipment.
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Cost Savings on Pool Maintenance: By reducing the amount of chemicals required and preventing algae growth, pool UV systems can lower overall maintenance costs. The long-term savings from chemical purchases and less frequent cleaning make these systems financially advantageous. According to a report by the Association of Pool & Spa Professionals, savings can exceed $200 annually.
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Environmentally Friendly: Pool UV systems operate without contributing harmful chemicals to the environment. This aligns with growing trends toward sustainable practices in water management. The U.S. Environmental Protection Agency endorses UV systems as part of green pool management practices.
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Safe for Swimmers: UV systems provide a safer swimming experience by reducing chemical exposure. Swimmers, especially children, are less likely to experience irritation or allergic reactions often associated with chlorine use. Research published by the Centers for Disease Control and Prevention indicates that UV-treated water significantly decreases the potential for chemical-related health issues, making it a safer option for families.
How Does a Pool UV System Improve Water Quality?
A pool UV system improves water quality by using ultraviolet light to eliminate harmful pathogens. It works by exposing pool water to UV rays inside a special chamber. The UV light disrupts the DNA of microorganisms, including bacteria and viruses, rendering them incapable of reproduction. This process significantly reduces the number of harmful contaminants in the water.
Next, the UV system complements traditional sanitation methods, such as chlorine. While chlorine kills many germs, it does not eliminate all pathogens or remove chloramines, which can cause irritation and unpleasant odors. A UV system addresses these shortcomings by providing an extra layer of sanitation.
Additionally, the use of a UV system can reduce the amount of chlorine needed. Lower chlorine levels lead to fewer chemical byproducts in the water, creating a safer and more pleasant swimming environment. This results in clearer water that is free from floating particles and debris.
Overall, a pool UV system enhances water quality by effectively inactivating harmful microorganisms, reducing chemical usage, and promoting a healthier swimming experience.
What Are the Safety Advantages of a Pool UV System for Swimmers?
The safety advantages of a pool UV system for swimmers include reduced chemical usage, improved water clarity, and disinfection of harmful microorganisms.
- Reduced Chemical Usage
- Improved Water Clarity
- Disinfection of Harmful Microorganisms
- Lower Risk of Skin Irritation
- Increased Swim Comfort
With these safety advantages established, it’s essential to delve deeper into each point to understand their significance and implications.
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Reduced Chemical Usage: A pool UV system significantly reduces the need for traditional chlorine and other chemical sanitizers. This method of disinfection uses ultraviolet light to neutralize bacteria and viruses effectively. According to a study published by the Environmental Protection Agency (EPA) in 2021, pools utilizing UV systems can decrease chemical demand by up to 75%. Less reliance on chemicals results in lower overall exposure to swimmers, making it a safer environment.
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Improved Water Clarity: Pool UV systems contribute to clearer water by breaking down contaminants and organic materials that cause cloudiness. The UV light acts on these particles, promoting a cleaner swimming experience. Research from the Association of Pool & Spa Professionals (APSP) highlighted that UV systems can enhance water clarity, as they eliminate microscopic impurities, which also enhances the aesthetic appeal of the pool.
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Disinfection of Harmful Microorganisms: The main function of UV systems is to disinfect water by deactivating microorganisms. Ultraviolet light penetrates the cell walls of harmful pathogens, including E. coli and Giardia, effectively rendering them harmless. A report from the Centers for Disease Control and Prevention (CDC) indicated that pools equipped with UV systems had a significantly lower incidence of recreational water illnesses (RWIs).
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Lower Risk of Skin Irritation: Traditional chlorination can lead to skin irritations and allergic reactions in swimmers. UV systems mitigate these risks by reducing chlorine levels and creating a less irritating swimming environment. Dermatologists, such as Dr. Poonam Jain, have noted that a UV-treated pool environment is gentler on the skin, benefiting those with sensitivities.
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Increased Swim Comfort: Swimmers often report increased comfort when swimming in UV-treated pools. The absence of strong chemical odors and irritation enhances the overall swimming experience. A survey conducted by the National Association of Pool Contractors (NAPC) in 2022 revealed that 85% of respondents preferred the comfort level of UV disinfected pools over conventionally chlorinated ones.
How Does a Pool UV System Compare to Other Sanitization Methods?
A pool UV system is compared to other sanitization methods such as chlorine, bromine, and ozone in terms of effectiveness, maintenance, safety, and cost. Below is a detailed comparison:
| Sanitization Method | Effectiveness | Maintenance | Safety | Cost | Environmental Impact |
|---|---|---|---|---|---|
| UV System | Highly effective in killing bacteria and viruses; works instantly | Low; requires occasional bulb replacement | Safe; non-chemical method | Moderate initial cost, low operational cost | Minimal; does not produce harmful byproducts |
| Chlorine | Effective against bacteria; slower action | Moderate; requires regular testing and dosing | Can cause irritation and is toxic in high doses | Low initial cost, ongoing chemical costs | Can produce harmful byproducts |
| Bromine | Effective in warmer water; slower than UV | Moderate; requires regular testing | Less irritating than chlorine; still a chemical | Moderate initial cost, ongoing chemical costs | Can produce harmful byproducts |
| Ozone | Highly effective; requires contact time | High; requires complex system maintenance | Safe in low concentrations, toxic in high concentrations | High initial cost, moderate operational costs | Can produce harmful byproducts |
What Features Should You Look for in the Best Pool UV System?
The best pool UV system should include features like efficiency, safety, ease of installation, and compatibility with existing systems.
- Efficiency
- Safety
- Ease of installation
- Compatibility with existing systems
- Maintenance requirements
- UV lamp lifespan
- Energy consumption
- Cost-effectiveness
- Manufacturer support and warranty
The features listed above are essential to consider when choosing a pool UV system, as they can significantly impact performance and usability.
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Efficiency: The best pool UV system provides high levels of disinfection while minimizing the chemical usage required for pool maintenance. A system that efficiently destroys bacteria, viruses, and other pathogens, should achieve a UV dose of at least 30 mJ/cm², as referenced by the CDC. Systems that utilize advanced UV lamp technology can enhance efficiency and effectiveness.
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Safety: Safety features are essential to protect users from UV exposure and ensure the system operates without risks. Systems should include safety interlocks that prevent operation when the unit is accessible, along with user-friendly designs that follow safety standards outlined by organizations such as NSF International.
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Ease of installation: A good pool UV system is easy to install. Systems should come with clear instructions and require minimal tools or expertise to set up. Many users prefer systems that can be installed in existing plumbing configurations without significant modifications.
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Compatibility with existing systems: The best systems work well with existing pool sanitation methods. A UV system should integrate easily with chlorination or saltwater systems, offering synergistic effects that enhance overall water quality without the need for replacements or extensive upgrades.
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Maintenance requirements: A low-maintenance system is ideal for pool owners. The best UV systems typically need annual cleaning of quartz sleeves and occasional bulb replacements, with clear maintenance reminders or indicators.
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UV lamp lifespan: The lifespan of UV lamps directly affects the system’s long-term costs. Quality systems often feature lamps designed to last 9,000 to 14,000 hours before replacement is necessary, making it an essential factor to assess when choosing a system.
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Energy consumption: Energy-efficient models reduce annual operating costs. Select UV systems should ideally consume 50 watts or less, providing strong disinfection without incurring high electricity bills.
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Cost-effectiveness: The initial purchase cost and ongoing operational savings form part of the overall value. A system that delivers ample disinfection while reducing chemical requirements can lead to significant savings over time.
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Manufacturer support and warranty: Reliable customer support and extensive warranties indicate quality and trustworthiness. Manufacturers should offer at least a 1 to 3-year warranty on UV systems and have customer service available to address installation or maintenance questions.
How Does Cost Influence Your Choice of Pool UV System?
Cost significantly influences your choice of pool UV system. First, evaluate your budget. Determine how much you can afford to spend on equipment and installation. Next, consider the upfront costs of different UV systems. Weigh cheaper systems against more expensive, high-quality options.
Assess ongoing costs, including maintenance and replacement parts. A lower initial cost might lead to higher long-term expenses if the system requires frequent repairs. Evaluate energy efficiency as well. A more efficient system may have a higher upfront cost but save money on energy bills.
Analyze the warranty and support services provided. A robust warranty may justify a higher price if it reduces future repair costs. Finally, compare the features of each system. Ensure that a higher price reflects added value, such as greater effectiveness in water sanitation.
By mapping out these factors, you can make a well-informed decision that aligns cost with your specific needs for a pool UV system.
Which Pool UV Systems Are Highly Recommended Based on Expert Reviews?
The highly recommended pool UV systems based on expert reviews include several top models known for their efficiency and reliability.
- Pentair Intellichlor IC20
- Aqua Ultraviolet UV Sterilizer
- Hayward UV Clear
- ClearWater Tech UV Pool System
- Viqua D4
The following details provide a comprehensive view of each system’s features and effectiveness.
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Pentair Intellichlor IC20: The Pentair Intellichlor IC20 is a salt chlorine generator that also offers UV features. This system produces chlorine as needed, enhancing pool water quality. According to Pentair, it can effectively sanitize pools up to 20,000 gallons. A study by the National Center for Biotechnology Information in 2015 shows that this method reduces harmful microorganisms effectively, ensuring a cleaner swimming environment.
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Aqua Ultraviolet UV Sterilizer: The Aqua Ultraviolet system is designed for both commercial and residential pools. It utilizes a stainless-steel chamber to enhance UV exposure. The manufacturer claims it achieves a 99.9% reduction of pathogens. In a survey conducted by the Pool & Spa Association, users reported significant improvements in water clarity and reduced chemical usage after installing this system.
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Hayward UV Clear: The Hayward UV Clear system is compact and versatile, making it suitable for various pool sizes. This model features an easy-to-install design and a low-maintenance requirement. Hayward claims that this system can reduce chlorine usage up to 50%. A user review on Pool & Spa Warehouse noted improved safety results and reduced irritation to swimmers’ skin and eyes after integration of this UV system.
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ClearWater Tech UV Pool System: The ClearWater Tech system offers high-output UV lamps and advanced technology for effective disinfection. It operates efficiently with both commercial and residential pools, ensuring long-lasting bulb life. Case studies from the National Swimming Pool Foundation in 2018 demonstrated that UV systems like ClearWater Tech significantly improve overall bathing water quality and safety.
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Viqua D4: The Viqua D4 system is ideal for both small and medium pools. It utilizes low-pressure high-output lamps, achieving effective pathogen reduction. According to Viqua, it can treat water at a flow rate of 20 gallons per minute. The system is noted for its energy efficiency and was highlighted in the Green Building Journal as a sustainable option for eco-conscious pool owners.