How To Install Water Filter Faucet in 5 Easy Steps

In today’s world, almost every home has a whole house water filter. The whole house water system aims to ensure that clean and filtered water is available in every faucet present in the house by treating the impurities of the original water source.

There are different types of whole house water filters available in the market, for example, ultraviolet purification systems, acid neutralizers, carbon filters, sediment filters, and water softeners.

The water filter faucet’s primary work is to eliminate the contaminants from the water to ensure that you are drinking clean water. They are also responsible for minimizing the buildup of bacteria, eliminating the lead quantity, eliminating the plastic content, etc.

Without any doubt, these water faucets are of great use, but installing these water filter faucets can be a tough job if someone has never done it before. But don’t worry, in this article, we will tell you a step-by-step process to install the water filter faucet. Just follow these steps, and you will be able to install it by yourself within no time.

Steps To Install Water Filter Faucet

If you are thinking of installing the water filter faucet on your own, then you must educate yourself about basic plumbing techniques. You need to learn about the plumbing pipes, the parts of a filter system, and the equipment you may need to install the filter.

One must understand that the filter system always consists of 2 filter units, i.e., the first is a pre-filter, which is responsible for catching the rust and dirt particles, and the second is a carbon filter which is responsible for removing the other contaminants.

Step 1: Finding Out The Location

Finding Out The Location

The first step is to select a proper location where you want to install the filter faucet. If you are confused, ask for help from a plumber, or you can choose a specific area that is easily accessible to you.

The location should be easily accessible because the water filter cartridges are needed to be replaced in a certain period (may range from 6 months to 14 months depending on the material), and you might not want to go through the hardships again and again while replacing the cartridges. So make sure that there is no obstacle or interference. The location you choose must be near the floor or wall base so that they would secure the mounting bracket of the filter.

The majority of the time, the main water shut-off valve is considered the best location. This is the nearest point from where the water flows or is supplied to all the facets of the house, so it can be easily ensured that every faucet receives a clean and free of contaminant water supply. This way, you will only require one single filter (primary) to receive the filtered water at all the faucets in the house. This will be a very clever technique, and it will also help save your money anytime while installing filters to every tap.

Pro Tip

If you simply want to replace the old filter faucet with a new one, you need to access the exact location so that you need not have to search for the perfect location. It is much easier to find the correct place if you are just replacing but observe and perform the task carefully.

Step 2: Installation

If you have selected the location, it’s time to use the equipment and open the valve.

But before that, don’t forget to turn off the water supply by using a handle that may be nearly 5 to 6mm away from the primary water supply source. Now open the valve and leave it open a few times so that all the remaining water would drain out.

Remove a few sections of the pipe to install the filter system. You can simply mark it before removing or partitioning the pipe to avoid any mistakes. You can also follow the manufacturer’s instructions to accommodate the perfect fitting.

If you are using only one filter, just mark only at a particular location where you want to install it.

If you are using two filters (carbon filter and pre-filter), you need to cut the pipe to install two tees and a shut-off valve. Before doing this, you should always have a clarity of configuration and the required length to install them. Always double-check to avoid any errors or mistakes.

After making a cut section, clean the pipe area to avoid contamination or dust particles. Then place the filter after removing the pipe section which you have cut. If you want to prevent any water wastage, it’s better to place a bucket underneath it. Now, follow the below-mentioned procedure very carefully:

  • Use a deburring tool or a reamer to remove the burrs while cutting the pipe.
  • Connect the tee on both sides of the cut section between a ball valve and a pipe and leave them for a dry fit. You can skip this step if you are using only one filter.
  • Now add ball valves between the filter and each tee. Ensure that the two valves are open and the bypass valve is closed. Correctly check if the fitting is correct and there are no loose ends or easy uninstallation due to water pressure.
  • If you are using a bypass valve, then in another installation/replacement, you can simply open this valve while closing the two valves where you have installed the filter.
  • With the help of a fitting brush or cloth, you can clean the fittings and the internal and external parts. Now carefully apply the flux to the inner part of the copper pipe and the other fittings. 
  • Use a propane torch to heat up and melt the solder to make the fitting much tighter. You can see a visible joint line; leave it for seconds.
  • Once it is cool, clean it with the help of a cloth or fitting brush. Using solder fittings does not damage any internal parts of the water filter

Step 3: Sealing


With the help of a thread seal tap, tightly seal the threads and threaded fittings into the filter valve. Be very careful during this process because over-tightening and under-tightening can further damage.

Step 4: Checking

Now finally, reinitiate the water supply by opening the wall. Properly check for any leakage through the filter, bypass valve, or faucet. If there is no leakage, you are successful at your job, and if there is any leakage, try to tighten the joints and tighten the thread seal tape.

Step 5: Future Tip

Future Tip

Note down the filters’ installation date or manufacturing date because they also need to be changed within a specific time if you want to get filtered water. The replacement time generally depends on the filter’s type of material and always varies. For example, carbon filters can work for several years compared to the other filters available in the market.

Pro Tip

You can also install the shut-off valves to isolate the units if you don’t want to go through hardships while changing the filter in the future. The bypass valve can also be installed if you want to have continued water suppliers from all the house faucets, even while you are changing the filters.


Want to be more thorough with the installation process of the water filter faucet? Here are a few facts and questions for you.

Q1. Why do people attach filters to faucets?

People attach filters to faucets to eliminate contaminants from water so you can have water that is safe to drink. It is a less costly and more convenient way to get clean, safe drinking water.

Q2. Can I attach a water filter to my kitchen faucet?

It is most advisable to attach a water filter to the main water shut-off valve because this way, all the water in your household will be filtered. However, should you prefer, you can simply attach a water filter to my kitchen faucet if that is where you will need filtered water.

Q3. Should you filter your tap water?

Yes. Filtering your tap water will ensure that the water you use in your household – for drinking, cooking, cleaning, and the like – is safe and clean.

Q4. Do you need a separate faucet for the under sink water filter?

It’s perfectly fine to just add the filter on an existing faucet. But if you want to take extra precautions to not waste the filter, then a separate faucet will be useful, so you will just be using the water filter when needed.

Q5. Can you put a filter on a pulldown faucet?

It is not immediately advised to do so because the dock may not be designed to accommodate the weight of a water filter system. However, if you get an expert to look at it and see if it is viable, they may be able to install a filter on your pulldown faucet.


Water filter installation is one of the essential tasks you must do when you move into a house. You cannot deny that every human requires clean water to stay healthy, no matter where you live. The water supply at your home can come from the municipality that may have undergone the water treatment, but this cannot be 100% true. So, you should create specific safety standards by yourself and follow them. By installing the whole house water filters, you can ensure that your drinking water is free from contaminants and other chemicals.

By following the above-mentioned simple steps, you can easily install the water filters by yourself without a plumber or professional’s help. Make sure that you follow every step without committing any mistakes.

Be confident and follow the steps appropriately and attentively. Installing filters is not difficult, and one can do it by themselves with minimum effort. You can also install the filter in every faucet, but it will only cost you extra. So it’s better to install a single filter near the main supply; this will save time while replacing filters.