UV Water Filter Buyer’s Guide (Avoid These Expensive MISTAKES)

Common UV Filter Problems and Mistakes

Here is a list of some of the common mistakes that people make when buying and using UV filters. Understanding these problems will mean that you avoid them and that you can use your UV filters worry free.

Red CrossPeople always get tempted to buy the cheapest UV filters they can find. There are many cheap plastic / low quality material ultraviolet water systems available online.

Don’t be seduced by the low prices as they are very unreliable and sometimes extremely dangerous.

If you can not afford to get a high quality UV filter then choose a cheaper water filter method like reverse osmosis or simply buy a water filter jug.

Red CrossBuying a stand-a-lone UV filter is not always a good idea unless you are only worried about low-medium amounts of bacteria.

The best UV filters are part of a multi-stage water filter like the upgrade options for the Aquasana Rhino and OptimH20.

A UV filter on its own is unlikely to take care of all your water needs e.g. hard water issues, lead contamination or debris like sand and dirt.

However, if you’re going to spend that type of money then you should really get something that will take care of everything like the OptimH20.

What is the point of a UV Filter?

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Getting a UV water filter means that you have a filter that uses ultraviolet light to treat and purify your water.

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You can get a UV water filter in a stand alone version or add it on to your whole house softener so that it can help improve the taste and remove any bad smells.

auqsana UV sterlightAll home UV filters should be equipped with a pre-filter system.

Red CrossThis is because a UV filter is not so good at dealing with large bits of dirt, sand, debris or particles.

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So using a pre-filter to remove any larger pieces of dirt will make the UV filter work more efficiently.

Red CrossIt is also important to note that UV water filters do not eliminate chemical contaminants. This also includes things like VOC’s (volatile organic compounds), heavy metals or suspended solids. They can, however, disinfect relatively clean water and destroy harmful microorganisms.

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For a more complete filtration I recommend adding UV water filters to an existing whole house filter or softener.

This article will review some of the best stand alone UV filters as well as those available as a whole house filter upgrade.

UV Treatment Private Water Supply

Some UV filters for the entire house can be supplied with filter cartridges that can also attack other contaminants. For example, the SW UV Water Purification System water filter system is supplied with a filter block for carbon blocks.

Pelican UV FilterThis reduces the bad taste and odor, chlorine, salt. But also other substances like, cysts, cryptosporidium and giardia from your water.

Some of the contaminants eliminated by UB filters include:

  • Microorganisms (e.g. Cryptosporidium, Giardia, E-coli, Pseudomonas, etc).
  • Chemical disinfectants and their derivatives. For example, hormones, VOC’s volatile organic chemicals, organic, herbicides, toxins and pesticides.
  • Heavy metals.
  • Sediments.
  • Fluoride.Check Prices & Read Customer Reviews
  • Hydrogen sulfide.
  • Bad taste, bad odors etc.

These types of UV filters are best as an add on to whole house water filter. They are also the most expensive.

Ultraviolet Water Treatment Systems Home Use

HQUA-TWS 12 Ultraviolet Water Purifier Sterilizer Filter for Whole House Water Purification

More and more people are deciding to invest in their own water treatment systems to address the growing potential risk of water pollution in private and community water sources.

It is believed that giardia, cryptosporidium and e. coli are the major microbial problem that often occurs in private water sources that cause disease in humans.

Most people are familiar with e.coli because it is often discussed in the media as a contaminant in food, but it is also a water polluter.

The UV water purification system is considered an effective device for these problems. Not only does it provide a better taste, it also provides additional health insurance for your family.

The ultraviolet (UV) treatment process is an extremely fast physical process. Ultraviolet light mutates and / or degrades DNA. When DNA is damaged, the organism can not function because its “instructions” are distorted or missing.

An organism without instructions can not work or multiply and can not cause infection. It is harmless and eventually dies.

In UV disinfection, the water is purified while passing through a stainless steel chamber (also called a “reactor”) containing a special UV lamp. When the water passes through the lamp, the microbes in the water receives a lethal UV dose.

HQUA-TWS 12 Ultraviolet Water Purifier Features

The HQUA UV water filter is a water treatment device that needs to be assembled but easy to set up.

Each part has its own function:

  • 12 GPM 55 watts 21 inches long and 3.5 inches in diameter. MNPT inlet / outlet: 3/4 “inch DN20.
  • This is the latest design that is a smaller size. The result is an easier to install UV filter that you can integrate into your existing pipe system.
  • There is no secondary pollution. No chemical connection to the water supply.
  • 9000 hours life of the UV lamp.
  • Efficient sterilization: disinfection of 99.99% of bacteria and viruses.
  • Comes with a professional manual. Installation, maintenance and troubleshooting are easy to perform.

HQUA-TWS UV water filter replacement bulbs are FREE – contact customer services.

UV Water Treatment System

Aquasana 10-Year 1,000,000 Gallon with UV Filter

The Aquasna 10-year is a durable, powerful water filter for healthy, tasty water throughout your home, up to 1 million gallons or 10 years.

This system allows you to upgrade to the UV Sterilight.

Aquasana Whole House Features ListSterilight UV Filter provides comprehensive protection for your home to protect against bacteria and viruses.

It is ideal for you if you are worried about bacteria and chlorine-resistant cysts.

A UV filter upgrade to your whole house water filter is one of the best ways to protect yourself from bacteria and viruses that may be present in your water.

The powerful UV filter kills 99.99% of viruses, bacteria like e.coli and cysts. It also kills things that are resistant to chlorine, such as cryptosporidium and giardia.

There are some extra features that you should know about:

  • It comes with a pre-filter. This removes sediments, captures rust and salt.mrwatergeek winner badge
  • Provides you with water that is effectively “smooth” without the need to use salt. It does this by preventing “hard” minerals from sticking to your pipes and plumbing.
  • Reduces chlorine, water-soluble heavy metals and inhibits the growth of bacteria and algae in your water.
  • Uses an extra layer of filtration via an activated carbon filter. This reduces herbicides, pesticides and other chemical compounds from your water. See customer reviews
  • There is also an extra sub-micron post-filter. This will remove any leftover sediment or remaining organic particles by up to 0.35 μm.

The UV filter is an extra layer that will remove any thing that is left over from the extensive multi-stage filtration process. This will mainly be things like any left over bacteria and viruses that may be present in the water.

Aquasana Sterilight UV water filter replacement bulb here.

UV Water Filter Price?

A stand alone basic UV filter can cost upwards of $250. This does not includes professional installation and you may have to up a pre-filter to deal with large particles.

A UV add on / upgrade to an existing whole house filters can cost between $2500 – $3500 (for the whole filter package). High performance water filters and those that can deal with larger capacities can cost double or even triple that amount.

This is especially the case if they combine filters with carbon filters, ceramic filters or activated carbon granulate filters. And they process the water in a multi-stage fashion like Aquasana 10-year Rhino or OptimH20.

The bottom line is they are worth it because the process of these filters reduce an impressive number of contaminants.

The Best Domestic UV Water Filter?

Mr Water Geek ThinkingUltraviolet (UV) water treatment systems are primarily for the treatment of private water supplies.

Supplies such as local water companies, water tanks, wells, or water sources that are susceptible to bacteria, viruses and other microorganisms.mrwatergeek winner badge

UV systems are also strongly recommended if you have problems with things like legionella.

Aquasana Whole House Features List

Especially as this is resistant to chlorine treatment from your water company.

UV water treatment systems may be the best way to kill bacteria, viruses and other microorganisms in water.

As this type of water purifier does not use chemicals or produce byproducts: they are safe, reliable and extremely economical.

The best stand-a-lone domestic UV water filter is from here.

See customer reviewsHowever, if you’re getting a whole house water filter then you should get one from Aquasana and then OptimH20.

Aquasana Whole House FilterPelican Softener with Filters
Treats hard water UP TO 25 ppm (low to medium low hard water).Treats hard water OVER 25 ppm (medium to extremely hard water).
Does NOT require electricity.Requires electricity if using the electronic head monitor.
Control Your System With An App:? NOControl Your System With An App:? YES
- Powerful salt-FREE water softener.
- 1,000,000 one million gallon capacity.
- Aquasana Rhino exceeds NSF standards.
- Treats hard water WITHOUT salt.
- Removes chlorine, bacteria, iron, sulfide, manganese, mercury, lead etc.
- Includes pre-filter, copper-zinc and carbon filtration stages with standard fittings.
- 90-Day Pure Satisfaction Guarantee.
- Limited 10 year warranty.
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- Powerful salt-BASED water softener.
- 1,000,000 one million gallon capacity.
- Also includes a multi-stage filter.
- Easy installation (inside or outside)
- Sufficient for 1-3 bathrooms (options for 4-6 and 7+ bathrooms also available).
- 6 month money back guarantee.
- Limited lifetime warranty.
Ships to US and CA.
Ships to US, CA and Puerto Rico.
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  1. Good afternoon
    I am hoping you can help check my logic on a calculation to determine the value of my whole home POE system. The price of my UV, plus 5-micron filter, plus GAC filter system is $1,355 (not installed) which is $3.71/day over a year’s time. The lifespan of a UV light is under 9,000 hours or 1 year, according to the manufacturer’s invoice. The cost for replacing just the UV light is not known, yet. My system is rated up to 10 gpm flow and would have a probable maximum daily use of 3 hours for our home. Therefore, the value of this system is $0.0021/gallon of water treated for a typical day’s use.

    First, does this make sense? Second, if this logic is correct, can the cost of other biocide treatment technologies for waterborne bacteria be valued using the same methodology for comparison?

    Thank you​ and hope to hear from you soon.

    1. Hello,
      Apologies for the delay in my reply. Your logic makes sense to me! The only comment I’d make is about the amount of water you’re assuming you’d use per day – seems a bit high. The average estimated water usage per person in the US is ~100-120 gallons per day. You’re currently assuming a usage of 1800 gallons per day (put differently, you’re assuming about 15-18 people in your house).
      Regardless, you can certainly use the same logic to compare costs of different water treatment options for you and your family.

      Hope that helps.

      Mr Water Geek

  2. I am on a well based system thst services our whole area. In addition to having hard water, we also have a very high level of flouride. This was outlined in a letter from the company that operates the well system. What are your recommendations?

    1. Hi Charlie

      I would suggest a dedicated whole house well water filter and softener combination along with an under sink reverse osmosis (for the fluoride).

      If your water is not extremely hard you may want to consider a salt free softener like this solution for hard well water and they also have reasonably priced reverse osmosis units too.

      Stay hydrated,

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