Meta Title: Best UV Water Purifier Systems of 2024 | Water Defense
Meta Description: Check out our in-depth reviews of the best UV water purifier systems of 2024. We guide you through all of their key features to help you choose the right one.
UV water purifier systems are a great idea if your home is supplied with well water. They are particularly effective at eliminating contaminants like bacteria and viruses that are commonly found in this type of water supply.
We decided to test all the best UV water purifier systems and put together this list of the top four.
The best overall is the SpringWell UV Water Filter and Purification System. Its exceptional UV power means it can eliminate up to 99.99% of contaminants like E. Coli and giardia. It also has a high flow rate of 15 GPM, which makes it suitable for homes with up to six bathrooms.
However, the SpringWell system (and most of the other ones on this list) are pretty expensive. So, if you’re looking for a more budget-friendly option, we’d recommend the Acuva ArrowMAX 2.0 UV-LED Water Treatment System.
UV Water Purifier Comparison Chart
- UV power: 30mj/cm2
- Flow rate: 15 GPM
- Lamp replacement: Once every year
- Operating water temperature: 36 – 104 Fahrenheit
- Warranty: Lifetime
- UV power: 30mj/cm2
- Flow rate: 15 GPM
- Lamp replacement: Once every year
- Operating water temperature: 36 – 104 Fahrenheit
- Warranty: Lifetime
- UV power: 16mj/cm2
- Flow rate: 0.52 GPM
- Lamp replacement: Once every year
- Operating water temperature: 39 – 109 Fahrenheit
- Warranty: 1 year
- UV power: 40mj/cm2
- Flow rate: 14.7 GPM
- Lamp replacement: Once every year
- Operating water temperature: 40 – 90 Fahrenheit
- Warranty: 5 years
List of UV Water Filtration Systems:
- SpringWell UV Water Filter and Purification System
- Kind Water Systems UV Water Purification System
- Acuva ArrowMAX 2.0 UV-LED Water Treatment System
- Aquasana Rhino Well Water with UV
1. SpringWell UV Water Filter and Purification System
- UV power: 30mj/cm2
- Flow rate: 15 GPM
- Lamp replacement: Once every year
- Operating water temperature: 36 – 104 Fahrenheit
- Warranty: Lifetime
PROS
- At 30mj/cm2 ultraviolet power, it’s ideal for purifying well water, even if it’s very contaminated
- 15 GPM flow rate makes it suitable for households that have one to six bathrooms
- The system head allows you to monitor the state of the filter as well as the water quality
- Lifetime warranty, which is reassuring as it suggests SpringWell is confident in the unit’s longevity
CONS
- Slightly expensive, but we think it’s worth it for such an effective system
- Might require a sediment filter for optimum efficiency, which can add to the overall costs
If you’re an avid follower of WaterDefense, you probably already know that SpringWell is our preferred brand in the water treatment niche. That’s because almost all of the products in their extensive catalog are well built, effective, and come with a lifetime warranty. The SpringWell UV Water Filter and Purification System is no exception!
It’s the best UV water purifier system for well water and its 15 GPM flow rate makes it ideal for medium-to-large homes with relatively high water demands. However, the quality and robust features come with a high price. Still, considering everything the unit offers, the price is expected and reasonable, although probably not suitable for those on a budget.
Effective Contaminant Removal
Thanks to its strong ultraviolet light that emits a minimum constant of 30mj/cm2 power, it can kill 99.9% of the most common pathogenic contaminants like E. coli, cryptosporidium, and giardia. These contaminants are all known to cause health issues and are commonly found in US well water supplies.
Compared to the other units we tested for this list, this unit had the best contaminant removal rate. So, it’s the ideal choice for any home supplied with well water, no matter how contaminated the water is.
High Flow Rate
What we love about this model is that it does the job with a 15-gallon-per-minute (GPM) flow rate, which puts it among the strongest UV filters available. This makes it ideal for houses with up to six bathrooms.
We installed it in a large house with three bathrooms and we had no issues at all. The water pressure didn’t decrease and we got purified water on demand from every faucet we used.
Electronic System Head
Like all other SpringWell water treatment devices, the UV Water Filter features an electronic system head that allows you to monitor the filtration process. It also informs you how many days are left until you need to replace the lamp or when the water has too much turbidity for the UV light to penetrate enough to kill pathogenic organisms. In the latter case, for instance, the system head warns you that the water might not be safe for consumption.
Lifetime Warranty
All SpringWell products have lifetime warranties, and the SpringWell UV Water Filter and Purification System is no exception. So long as you change the UV lamp following the warnings of the system head, this model can serve you a lifetime.
However, if your well water has too much turbidity or too much sediment, you might need to install a sediment filter before the UV device to ensure optimal performance.
2. Kind Water Systems UV Water Purifier System
- UV power: 30mj/cm2
- Flow rate: 15 GPM
- Lamp replacement: Once every year
- Operating water temperature: 36 – 104 Fahrenheit
- Warranty: Lifetime
PROS
- With 30mj/cm2 ultraviolet power, it’s ideal for purifying well water, which is the primary factor we considered when testing systems for this list
- 15 GPM flow rate makes it suitable for households that have one to six bathrooms. This means it’s as powerful as the top-rated system on our list
- The system head allows you to monitor the purification process and warns you about the condition of the lamp
- Lifetime warranty so you’re covered for repairs and replacements
CONS
- It’s expensive—only around $50 cheaper than the SpringWell system
- Might require a sediment filter for optimum efficiency
Though not as popular as SpringWell, Kind Water Systems has been lowkey producing some of the best American-made water treatment products for a while. We think this system is a testament to the brand’s quality standards, and its exceptional UV power, high flow rate, and user-friendly LED display mean that it comes in a close second on our list.
Impressive UV Power
Like the SpringWell device, the Kind Water Systems UV purifier produces a minimum of 30mj/cm2 ultraviolet light. Thanks to the powerful light, many of the pathogens that could cause a waterborne endemic, like coliform bacteria and giardia, die before they end up in your drinking water supply.
Superb Flow Rate
The Kind Water Systems is no slouch when it comes to flow rate either. With a 15 GPM operating flow rate, it can provide bacteria- and virus-free water for your whole family (if you use it for a home with one to six bathrooms), another trait it shares with the SpringWell model.
LED Display
It also has a system head with an LED display that allows you to monitor the purification process and warns you when it’s time to replace the UV lamp. We find it really frustrating when a system doesn’t include a digital interface as it makes the maintenance process needlessly complicated. So, we were really pleased that this unit has a user-friendly display that makes maintaining it a breeze.
Microbiological Destruction Chart
We really like the fact that the package features a microbiological destruction chart that lists all known pathogens found in water. Thanks to this list, you can learn how many megajoules of ultraviolet power you need to kill the specific pathogens present in your water.
3. Acuva ArrowMAX 2.0 UV-LED Water Treatment System
- UV power: 16mj/cm2
- Flow rate: 0.52 GPM
- Lamp replacement: Once every year
- Operating water temperature: 39 – 109 Fahrenheit
- Warranty: One year
PROS
- It’s a portable, under-the-sink model with a sleek, compact design. It kind of looks like a WiFi router and can easily slot into small spaces
- It’s way more affordable than the other units on our list
- The product package features a smart faucet so you can easily monitor the condition of the filters and the quality of the water
- It has its own pre-filter so there’s no need to pay for a separate one to enhance its efficiency
- Its advanced pre-filter is equipped to handle dangerous contaminants like lead and VOCs
CONS
- 16mj/cm2 UV dosage is ineffective against some bacteria and viruses
- 0.52 flow rate might not be enough for the drinking water needs of large families
- Only one year of warranty, which pales in comparison to the lifetime warranties of the SpringWell and Kind Water units
The SpringWell and Kind Water systems we reviewed above were point-of-entry systems, which are supposed to be installed on the main incoming water line to your household.
The Acuva ArrowMAX, on the other hand, is a point-of-use system, with a smart faucet that goes under your kitchen sink and only purifies the water from that particular faucet. The Acuva ArrowMax is a unique UV unit as it’s one of the only point-of-use systems we’ve come across that’s high-quality and also portable.
If you’re looking for a highly efficient UV system that can be easily moved to different locations, then we think you’ll appreciate the ArrowMax.
Key Features:
- Portability: Although you’ll only have one faucet with clean water, that’s not necessarily a downside, as you mainly need clean water for drinking. What’s more, since it’s a portable device, you can easily uninstall it from your kitchen sink whenever you need it elsewhere and install it in your RV, cottage, or summerhouse.
- Advanced pre-filter: However, its portability doesn’t diminish its efficiency. Thanks to the inclusion of an advanced pre-filter, the unit is effective against not only bacteria and viruses but also heavy metals and volatile organic compounds. Unlike with the SpringWell or Kind Water Systems, you don’t need to pay extra money for a pre-filter to ensure maximum performance. The Acuva pre-filter easily eliminates aesthetic impurities, sediment, chlorine, lead, and volatile organic compounds with a 99% removal rate.
- Smart Faucet: The optional Smart Faucet is relatively basic, but we still think it’s a great feature for such an affordable system. When we turned it on, a blue light let us know that the system was active and signaled that the unit was working effectively. Plus, the faucet has a self-cleaning feature that takes all the hassle out of maintaining the unit.
4. Aquasana Rhino Well Water with UV
- UV power: 40mj/cm2
- Flow rate: 14.7 GPM
- Lamp replacement: Once every year
- Operating water temperature: 40 – 90 Fahrenheit
- Warranty: Five years
PROS
- The state-of-the-art UV lamp is the strongest on our list with its 40mj/cm2 power
- The well filter makes sure that the UV lamp can operate with maximum effectiveness
- The filtration process is thorough and can remove up to 99.99% of bacteria and viruses
- 14.7 GPM flow rate is a good fit for small and large households alike
CONS
- Bulky, so it’s best suited to homes where space isn’t too much of an issue
- Expensive compared to the ArrowMAX unit
- Filter replacements will add up to long-term costs
- The 5-year warranty isn’t ideal when compared to the top two systems on our list but is still better than the ArrowMAX’s warranty
To be fair, the Aquasana Rhino Well Water Filter with UV Purifier is the most expensive product in this article. That being said, we don’t think this should put you off the product if you can afford to invest in it. It’s the best combination of well water filter and UV purifier available on the market. Its UV purification is as strong as it gets with a 40mj/cm2 UV lamp, and its well water filter is simply the crème de la crème.
Key Features:
- 4-stage filtration: The first stage is the pre-filter, which takes care of sediment particles, like dirt and clay, which might obscure the line of ultraviolet rays and decrease the efficiency of the UV filter. The water then enters two well water filter tanks situated on top of each other that house activated carbon media that remove chlorine, herbicides, pesticides, turbidity, and VOCs from water. This unique dual-tank design also ensures that the incoming water flows downwards and upwards, increasing contact time between the filtration media and water for a more comprehensive filtration process. Next, a post-filter eliminates the remaining sediment or turbidity from the water. Lastly, the UV purifier kills bacteria and viruses with an impressive 40mj/cm2 UV dosage.
- Excellent flow rate: If you’re worried that the long and thorough filtration process means you’ll get a low water flow rate, don’t be. The Aquasana Rhino can provide 14.7 gallons of pure water per minute, which is more than enough to accommodate the water needs of even large families.
- Easy installation and low maintenance: Although it’s bulky, the Rhino is fairly easy to install yourself without the need for a plumber. It doesn’t require any drain lines, and back flushing isn’t necessary, which makes it really easy to maintain.
Factors to Consider in a UV Light Purifier
Here are the most important factors to consider in a UV light purifier:
- UV dosage
- Contaminants removed
- Flow rate
- Ease of Installation
- Warranty
- Price
Now, let’s see what these criteria mean, why they’re essential, and how the products on our list compare to each other on these fronts.
UV Dosage
The power of an ultraviolet lamp is measured in how many megajoules (mj) of energy it can apply per one-centimeter square (cm2). It’s the most important criterion for a UV filter for well water because more powerful UV lamps kill more bacteria and viruses — it’s that simple.
For instance, an ultraviolet lamp requires 27mj/cm2 of energy to destroy poliovirus, one of the most dangerous viruses, as it can lead to paralysis and death. A unit with a minimum UV emittance of 30mj/cm2, like the SpringWell filter, is able to eliminate this virus, but a 16mj/cm2 model, like the Acuva ArrowMAX, won’t.
In that sense, the best unit for UV dosage is the Aquasana Rhino Well Water Filter with UV Purifier with its 40mj/cm2 ultraviolet power.
| UV Light Water Purifier and Filter Systems | UV Dosage |
| SpringWell UV Water Purifier | 30mj/cm2 |
| Kind Water Systems UV Water Purifier | 30mj/cm2 |
| Acuva ArrowMAX Water Treatment System | 16mj/cm2 |
| Aquasana Rhino Well Water Filter with UV Purifier | 40mj/cm2 |
Contaminants Removed
As explained in the section above, the strength of an ultraviolet lamp determines the amount and types of pathogens a UV system removes. But that’s not all.
Two models on our list, the Acuva ArrowMAX and the Aquasana Rhino, come with pre- or post-filters, which makes them effective against other contaminants as well.
On top of that, since UV lamps require water to have minimum turbidity and sediments to penetrate and kill pathogens, including pre-filters that eliminate turbidity and sediments is crucial for a UV unit to work as intended.
In this aspect, the Aquasana Rhino and Acuva ArrowMAX take the cake with pre-filters that remove many common well water contaminants like herbicides, pesticides, and volatile organic compounds, as well as aesthetic impurities like color, taste, odor, and sediments.
On the other hand, the SpringWell and Kind Water Systems don’t have any such feature.
| UV Light Water Purifier and Filter Systems | Contaminants Removed |
| SpringWell UV Water Purifier | Bacteria and viruses |
| Kind Water Systems UV Water Purifier | Bacteria and viruses |
| Acuva ArrowMAX Water Treatment System | Aesthetic impurities, turbidity, chlorine, VOCs, herbicides, pesticides, lead, bacteria, and viruses |
| Aquasana Rhino Well Water Filter with UV Purifier | Aesthetic impurities, turbidity, chlorine, VOCs, herbicides, pesticides, lead, bacteria, and viruses |
Flow Rate
The flow rate indicates how much water a particular UV system purifies in a given period of time; it’s measured in gallons per minute (GPM). For crowded households, it’s a specifically important aspect, as it affects the flow of water at the faucets inside the house.
Most of our reviewed models easily provide water for households with one to five bathrooms.
However, the best-performing are the SpringWell and Kind Water Systems UV purifiers with their 15 GPM flow rate.
Lastly, the Acuva ArrowMAX unit only has a 0.52 GPM flow rate. That being said, it’s a rate that’s suitable for what the product is meant for. Unlike the other options on our list, this particular unit isn’t a whole-house unit that produces pathogen-free water for all faucets, it’s an under-the-sink model that provides drinking water for just one tap.
| UV Light Water Purifier and Filter Systems | Flow Rate |
| UV Light Water Purifier and Filter Systems | Flow Rate |
| SpringWell UV Water Purifier | 15 GPM |
| Kind Water Systems UV Water Purifier | 15 GPM |
| Acuva ArrowMAX Water Treatment System | 0.52 GPM |
| Aquasana Rhino Well Water Filter with UV Purifier | 14.7 GPM |
Ease of Installation
The ease of installation determines whether you need to call a professional plumber to install a particular product. As most UV systems need to be installed directly on the incoming water line in a home, our advice is to employ the services of professionals even if you’re a die-hard DIYer.
Yet, not all the products we recommend are equally complicated regarding installation. For instance, the Acuva ArrowMAX is a small under-the-sink unit. Any DIYer with a bit of plumbing experience can easily handle its installation by following the installation manual provided by the manufacturer.
The Aquasana Rhino is at the other end of the scale. Since this particular system is an ensemble of a pre-filter, well water filter, post-filter, and UV purifier, its installation requires an experienced and dexterous plumber.
| UV Light Water Purifier and Filter Systems | Ease of Installation |
| SpringWell UV Water Purifier | Moderate |
| Kind Water Systems UV Water Purifier | Moderate |
| Acuva ArrowMAX Water Treatment System | Easy |
| Aquasana Rhino Well Water Filter with UV Purifier | Difficult |
Warranty
Warranty is a complicated aspect of UV purifiers as it rarely pertains to the main component of these units, the ultraviolet lamp.
As all ultraviolet lamps have a lifespan of one year and you need to replace them once a year, manufacturers rarely mention them in the scope of the warranty. If they do, the warranty on UV lamps is almost always only a year.
However, that’s not the case for the system head, which allows you to monitor the purification process and warns you when to replace the UV lamp or an error occurs. The lamp's casing and power connection are two other essential aspects usually covered under a warranty.
If you want a warranty for them, the lifetime warranty options of the SpringWell and Kind Water Systems UV purifiers are the best option.
The warranty for the Acuva ArrowMAX is really short in comparison, as it only lasts a year.
Before we move on to the table, we should warn you that UV purifiers have very specific working conditions regarding water hardness, turbidity, and temperature. As these are crucial aspects that directly affect the performance of a UV system, it’s best to carefully read the product’s instruction manual to avoid accidentally voiding your warranty.
| UV Light Water Purifier and Filter Systems | Warranty |
| SpringWell UV Water Purifier | Lifetime |
| Kind Water Systems UV Water Purifier | Lifetime |
| Acuva ArrowMAX Water Treatment System | One year |
| Aquasana Rhino Well Water Filter with UV Purifier | Five years |
Price
It’s always worth considering the price of a UV purifier before finalizing a purchase, as you don’t want to invest in a unit you don’t necessarily need. This is especially true if you don’t have a preexisting problem that needs an immediate response and if you only want to install a UV system as a preventive measure.
That said, our list has an item for every budget.
If you want a high-end product, you can’t do better than the Aquasana Rhino, but as it’s a combination of different filters, it’s also the most expensive UV system on our list at $1,399. The ArrowMAX, on the other hand, is the most affordable product on our list, costing only $549 or $599 with the optional Smart Faucet.
| UV Light Water Purifier and Filter Systems | Price |
| SpringWell UV Water Purifier | $1,000.90 |
| Kind Water Systems UV Water Purifier | $1,106.10 |
| Acuva ArrowMAX Water Treatment System | $549 – $599 |
| Aquasana Rhino Well Water Filter with UV Purifier | $1,399 |
Important: Please note that the table shows prices as of March 2024, the time of writing this guide, and the prices are subject to change.
The Most Common Well Water Pathogens
Well water is prone to pathogenic contamination, just because it’s common for agricultural, human, and animal waste to seep through soils and rocks and end up in underground water sources.
As a result, bacteria found in human and animal waste, like coliform bacteria (especially its subspecies of Escherichia coli), giardia, cryptosporidium, salmonella, legionella, and many different types of viruses, can be present in the private wells of many households.
Let’s discuss these pathogens, how they end up in well water, and their associated health risks.
Coliform Bacteria
Coliform bacteria are among the most common bacteria on Earth. They are found in water, rocks, and soil and present no health hazards by themselves.
However, coliform bacteria have a specific subspecies known as fecal coliform. Fecal coliform bacteria live in the intestines of humans and animals and can be released into the environment, including water sources, through human and animal feces.
The Escherichia coli variation of the fecal coliform bacteria is especially harmful and can lead to many symptoms like:
- Diarrhea
- Fever
- Nausea
- Vomiting
- Abdominal cramps
If the contamination is on an alarming scale, the symptoms and subsequent health effects might get even more severe:
- Bloody urine
- Dehydration
- Pneumonia
- Meningitis
Giardia
Giardia is one of the most common parasitic pathogens found in the United States. Like coliform bacteria, giardia can contaminate water sources through human or animal feces.
They have some very similar symptoms as well:
- Diarrhea
- Smelly gas
- Smelly and floating poop
- Vomiting
- Nausea
People who have tested positive for the presence of giardia in their bodies are diagnosed with giardiasis. Children and people with weak immune systems are especially vulnerable to this parasite.
Cryptosporidium
Cryptosporidium is another commonly found pathogenic and parasitic microorganism responsible for many waterborne disease outbreaks in the United States and worldwide. Even the states with some of the cleanest water in the US, like Oregon, or countries with the best water in the world, like Sweden, aren’t completely safe from contamination.
The symptoms of cryptosporidiosis are similar to the symptoms of E. coli or giardiasis:
- Watery diarrhea
- Nausea
- Vomiting
- Stomach cramps
- Fever
- Fatigue
- Weight loss
Similar to giardiasis, children, the elderly, and people with weak immune systems are more likely to get cryptosporidiosis.
Salmonella
According to the CDC (Centers for Disease Control and Prevention), salmonella causes more than a million infections, 25,000 hospitalizations, and 400 deaths annually even in the United States. Although most of these infections occur through food (packaged food, eggs, and so on), there’s still a likelihood that some bacteria can find their way to a water source through human or animal waste.
Once digested, salmonella bacteria leads to:
- Bloody diarrhea
- Abdominal cramps
- Severe fever
While most people recover from salmonella infection after a week, you should still take it seriously, especially if you have a weak immune system.
Legionella
Legionella is a common bacteria found in soil and water sources. When a water source is not properly decontaminated, it might end up in the municipal water supply, as it did during the Flint water crisis, and lead to an outbreak of Legionnaires’ disease.
People with compromised immune systems due to pre-existing health conditions, like cardiac or lung diseases, are more prone to experiencing its many symptoms that include:
- Coughing
- Breath shortness
- Severe headache
- Fever (also referred to as Pontiac fever, in this particular case)
- Muscle pain and aches
Although legionella doesn’t pass from human to human, it’s still best practice to decontaminate the water source or prevent this bacteria from ever ending up in your drinking water supply by installing a UV water purifier.
Frequently Asked Questions
In this section, we will answer some of the most common questions about UV water purifiers.
Yes, it’s best practice to install a UV water purifier for a private well. This advice applies to any well, whether or not it’s already contaminated.
Even if your well is not infected with bacteria and viruses, and you’re taking good care of it, there’s no guarantee it will remain safe. As we said earlier, these pathogens find their way into underground water sources by seeping through soil and rocks, so a UV purifier can help you prevent them from ending up in your drinking water.
There are many home water testing kits available online, some of which show the presence of bacteria and viruses in your water. Also, bacteria and parasites like coliform will give your water a cloudy color and slimy feel.
However, the best way to test for bacteria, viruses, microbes, or other common contaminants is by sending a water sample collected directly from your well or one of your faucets to a water testing laboratory certified by the Environmental Protection Agency (EPA). In return, you’ll receive a detailed sheet that lists which pathogens and contaminants are present in your water, at what levels, and whether their levels align with the drinking water standards set by the EPA.
Of course, this process will cost you, and it’ll take a bit of time for the lab to provide you with a thorough analysis. If the reason you want to test your water is your suspicion about bacterial or viral contamination, you shouldn’t drink any water from your faucets until you receive the results. In such cases, we recommend you stick to bottled water – specifically, spring water, if possible.
UV water purifiers require the incoming water to be up to a certain standard since the ultraviolet light needs to penetrate the water without an obstacle to kill all the pathogens inside it. Although these standards ultimately depend on the manufacturer and the strength of the UV unit, it’s best if the following values are met.
Turbidity: <1 NTU (nephelometric turbidity unit) – Turbidity simply refers to the clarity of the water. If the water isn’t clear enough, i.e., if it doesn’t have turbidity below 1 NTU, the ultraviolet rays won’t be able to kill all the bacteria and viruses.
Water hardness: <7 GPG (grains per gallon) – Water hardness signifies the calcium and magnesium content inside a body of water. Since these minerals are solids, their presence will block ultraviolet rays from reaching pathogens hiding behind mineral molecules.
Manganese: 0.05 ppm (parts per million) – Manganese is known for showing up inside water in the shape of black sediments. Due to its color and solid state, if the incoming water is manganese-rich, it’ll be a big obstacle to ultraviolet light.
Iron: 0.3 ppm – Similar to manganese, iron obstructs ultraviolet rays.
Tannins: 0.1 ppm – When they surpass the 0.1 ppm threshold, tannins not only present a solid obstacle before the ultraviolet rays, but they also change the color of water, increasing its turbidity, and rendering the UV lamp ineffective.
The water analysis you’ll receive from a certified lab will inform you about all of these values. If they are higher than recommended, you might want to consider solutions like water softeners for well water (especially if the water hardness levels are too high) and well water filtration systems.
Installing a UV water purifier is not as complex as installing, say, a whole house water filtration unit, so if you have some former experience in household plumbing, you can handle it with the help of the following tools:
Wrenches
Screwdrivers
Relevant connector fittings (in line with the instructions of the manufacturer)
Pipe cutter
Teflon tape
Extra pipe (same size with the current incoming water pipe)
Flexible tubing
The Aquasana Rhino has the most powerful UV lamp, at 40mj/cm2. Due to its strength, this combination of well water filter and UV purifier will kill more bacteria and viruses than most, if not all, of its competitors.
However, the answer to this question depends on the pathogen you want to eliminate from your water and how many megajoules per cm2 are needed for this pathogen to be destroyed.
For instance, if you’re looking to kill common bacteria and parasites like most strains of salmonella (10 mj/cm2), cryptosporidium (4mj/cm2), giardia (2.3mj/cm2), and legionella (9.4mj/cm2), all the products on our list will do the job.
However, the salmonella typhimurium strain, which causes typhoid fever, requires 50mj/cm2.
We should note here that this particular strain is rarely found in drinking water sources in the United States, and we only mentioned this as an example.
Furthermore, viruses and bacteria that are even rarer and have more complex structures, like adenovirus (requiring at least 100mj/cm2), might even survive the strength of the Aquasana Rhino.
The average price of a UV water purifier is $600. However, the average price of the models in our article roughly equals $839, mostly due to the Aquasana Rhino, a combination of a well filter and UV purifier.
Of course, these prices also depend on the type of UV purifier. For instance, while an under-the-sink unit, like the Acuva ArrowMAX, is on the more affordable side of the scale, a combo system like the Aquasana Rhino or a high-end whole-house unit like the Kind Water Systems Water model will easily cost more than $1,000.
Lastly, we should note that you need to replace the UV lamps of these units once a year. Depending on the manufacturer, these lamps might cost $50 to $150, adding to the long-term costs of your UV filter.
Conclusion
Private wells are prone to contamination by bacteria and viruses as these pathogens can sneak into underground water sources through human or animal waste. UV purifiers are one of the best ways to eliminate them from your drinking water supply, especially if you get your water from a well.
To that end, the SpringWell and Kind Water Systems UV purifier models, albeit a bit costly, are the best whole-house units you can find on the market, thanks to their flow rate and UV power. If you want an under-the-sink model, the Acuva ArrowMAX, with its own pre-filter, should be your go-to product.
For those who don’t want to shop separately for a well water filter and UV purifier, the Aquasana Rhino emerges as the best option with its 40mj/cm2 UV lamp and 14.7 flow rate.
