How To Install A UV Water Filter?

UV water filters, also known as ultraviolet water purifiers, are becoming increasingly popular in homes and businesses. By bypassing the water through a UV light chamber, these systems effectively eradicate viruses and bacteria that cause diseases like E-Coli or Giardia.

Installing a UV water filter is relatively straightforward, but taking the necessary safety precautions and observing correct procedures is essential. With the right tools and knowledge, it can be done easily and quickly.

Why Install A UV Water Filter?

UV water filters are a great way to improve the quality of your drinking water. Using this technology, you can eliminate bacteria, viruses, and other contaminants from your tap water. UV filters kill these microbes without using chlorine or other chemicals, making them safe for human consumption.

Why Install A UV Water Filter
Install A UV Water Filter

UV filtration does not adversely affect taste or odor, so that you can enjoy your water without any unpleasant side effects. Installing a UV filter also helps reduce the need for plastic bottle consumption, which benefits your health and the environment. With all these benefits, it’s easy to see why installing a UV water filter is smart.

Parts Of UV Water Filter

  • Sediment pre-filter: This is the first part of the filter system, which removes large particles like dirt, rust, and another sediment from the water before entering the UV filter. This step helps to keep your UV filter clean and prevent clogging.
    Sediment pre-filter
    Sediment pre-filter
  • UV chamber: This is the central part of the UV filter. This chamber houses a specialized light bulb that emits ultraviolet light, which kills bacteria, viruses, and other microorganisms in the water. It also contains a quartz sleeve to protect the bulb from damage.
    UV disinfection Chamber
    UV disinfection
  • UV light: This is the actual light bulb that emits ultraviolet light, which is responsible for killing microorganisms in the water. It must be replaced every 12 months to ensure the proper functioning of your UV filter system.
    UV light filter
    UV light
  • Quartz glass sleeve: This sleeve is placed around the UV light bulb to protect it from damage and helps keep the water clean by preventing microorganisms from entering the system.
  • Flexible tubing connects the sediment pre-filter, UV chamber, and other filter system components. It is essential to use the correct tubing size for your filter system.
  • Mounting brackets: This part secures the UV filter system to a wall or solid surface. Using the correct mounting brackets for your specific filter system is essential.
  • Flow control valve: This valve is used to adjust the flow of water through the filter system, so you can regulate how much water passes through it at any given time. It is essential to adjust the flow control valve correctly for optimal performance.
Flow control valve
Flow control valve


How To Install A UV Water Filter?

 Step: Unbox the UV water filter: Carefully remove the UV water filter from its packaging and set it aside in a safe, clean place. Check to see if all the components are present.

Step: Gather the necessary supplies: You will need the following supplies to install your UV water filter: a pipe wrench, a cloth rag or paper towels (for cleaning pipes), Teflon tape, replacement O-ring, plumbers’ putty or silicone caulk (if needed) and the UV filter itself. Gather all these items before starting the installation process to ensure you have everything you need.

Step: Locate your home’s main power supply: Before you install your UV water filter, it is essential to locate the main power supply of your home. The power source for a UV water filter is typically 220 volts, so ensure you have access to an appropriate voltage before attempting installation.

Mount the holders to the wall
Mount the holders to the wall

Step: Mount the holders to the wall: The next step is to mount the holders to the wall. To begin, locate mounting holes on the back of each holder and use a screwdriver or drill with a fair bit to secure them in place. Make sure the spacing between each holder is even for a neat installation.

 Step: Install horizontally: Take the filter and place it horizontally in the desired location. Make sure that there is enough room for any connecting pipes and fittings. Secure the filter to the wall using screws and brackets. Make sure that it is level before tightening all the screws. Once secured properly, you can begin to attach the necessary piping and fittings.

Step: Put the clip lock on: Once all the pipes have been connected, it’s time to secure them with the clip lock. The clips should be firmly over the connection point and tightened until there is no gap between the clip locks and pipe joint edges.

 Step: Unwrap the glass thimble: Carefully remove it from its packaging and ensure it is in good condition with no chips or damage. Place the thimble on a flat surface and check to make sure that there are no leaks. A tight-fitting rubber washer should be at the end of each end of the thimble for a secure fit.

Step: Slide the glass thimble into the UV system: Start installing the UV system by sliding the glass thimble into the UV unit. The glass thimble must be firmly secured and fit snugly against the wall or floor of your home where it is being installed. Make sure to align all of the components correctly before securing them with screws or other hardware.

Step: Put O-Rings on each end of the glass thimble: Once the glass thimble is ready, it’s time to put on O-Rings. This will help hold the filter in place when it is installed into the main water line. Start by lubricating each O-ring with a bit of silicone grease before sliding them onto their respective ends of the glass thimble.

Put O-Rings on each end of the glass thimble
Put O-Rings

Step: Put stainless steel caps back: After connecting the water filter system to the water supply lines, it is time to return the stainless steel caps. Make sure they are tightly screwed so that no moisture or air leaks out of the connection points.

Step: Plug the controller: Plug in the controller unit and ensure it functions properly. This will be responsible for filtering out any contaminants from your water and controlling the flow of untreated and treated water.

Plug the controller
Plug the controller

 Step: Plumb in the UV unit: Begin by turning off your water supply at the main valve and any other cutoff valves going into or out of your home plumbing system. You will then need to disconnect the existing pipes from their current connection points and fit them onto either side of the UV unit.

 Step: Insert the lamp: Insert the UV lamp into the filter chamber. Ensure that the wire is securely connected, then carefully place it inside, ensuring all wires are safely wrapped away from any contact with water. Once done, secure and tighten the end cap on the filter chamber.

Insert the lamp
Insert the lamp


 Step: Plug the unit in. Once you have found a suitable location for your UV water filter and connected the appropriate hoses, it’s time to plug in the unit. Ensure the power switch is in the ‘off’ position before connecting to an electrical outlet. Ensure no objects are blocking the air vents on either side of the unit.

 Step: Check for leaks: Before installing a UV water filter, it is essential to check for leaks in the system. This can be done by filling the system with water and checking all joints and connections for any signs of leakage or dripping. If any leaks are present, replace or repair them before continuing with the installation process.

When To Replace A UV Lamp?

When To Replace A UV Lamp
Replace A UV Lamp

It is essential to ensure that the UV lamp in your water filter system is replaced regularly. Fortunately, this is a relatively easy task. Most manufacturers recommend replacing the UV lamp every 12 months as it will slowly lose its effectiveness.

What Is The Difference Between Hard And Soft Glass UV Lamps?

What Is The Difference Between Hard And Soft Glass UV Lamps
Difference Between Hard And Soft Glass UV Lamps

Hard glass UV lamps are designed for high-pressure applications, such as water purification systems. These lamps contain a quartz envelope, which is more durable than the soft glass of other types of UV lamps and can withstand higher temperatures and pressures without damage.

Soft glass UV lamps are typically used in residential applications such as water purification systems. They have a soft glass envelope that is effective at transmitting UV light but is not as durable as the quartz envelope of intricate glass lamps. Soft glass UV lamps are also more prone to shattering or cracking in high-pressure applications.

When installing a UV water filter, it’s essential to make sure that you choose the correct type of UV lamp for your system. Intricate glass lamps are the best option for high-pressure applications, while soft glass lamps work well in residential systems.

Maintenance Tips

Clean the quartz sleeve inside the filter chamber every six months. This helps remove any sediment buildup on the sleeve that could reduce the filter’s effectiveness.

Clean the quartz sleeve
Clean the quartz sleeve

Check for signs of discoloration on the quartz sleeve, and replace it if necessary.

Change the UV lamp annually to ensure maximum efficiency and reduce the risk of bacteria growth. When replacing the lamp, clean all surfaces inside the chamber with a damp cloth.

• Make sure to check the filter pressure gauge regularly, as a buildup of sediment could cause it to become stuck.

Clean any visible particles from the filter housing with water or a mild detergent solution on occasion.


Does UV light work on well water?

Yes, UV water filters are effective on healthy water as long as the water is not too turbid. Turbidity, or cloudiness in the water, can block UV light from effectively disinfecting bacteria and other pathogens.

Should I get a professional to install my UV water purifier for me?

If the installation is more complicated than just connecting tubing, you may need a professional plumber or electrician to help you with the job. However, if you’re familiar with plumbing and electrical work, it may be possible for you to install your UV water purifier yourself.

Does a UV system affect flow rate?

In most cases, the presence of a UV system does not affect the flow rate of your water. However, if the system is installed incorrectly, it may lead to a pressure drop. A clogged filter or low-quality parts can also reduce the flow rate.

Is a UV water filter good enough for 500 TDS water?

Yes, a UV water filter can treat water with a Total Dissolved Solids (TDS) value of up to 500 parts per million. However, if the TDS levels are higher than this, you may need to consider other options, such as reverse osmosis or distillation, for effective water purification.

How long do I run my new water filter before drinking the water?

It’s recommended to flush your water filter for at least 20 minutes before drinking it, as this will help remove any impurities from the unit and ensure that the purification process has been completed successfully.


Installing a UV water filter is a relatively simple and cost-effective way to improve the safety and quality of your drinking water. In addition to providing safe drinking water, it can also help protect other appliances that use water, such as ice makers and coffee makers. With the right equipment and basic instructions, you can have your UV filter up and running in no time. Remember to regularly check your filter and change it when necessary for optimal performance. With a UV water filter, you can enjoy the peace of mind that comes with drinking clean, safe water daily.

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