If you have a water filter at home, it’s important to know how to replace it when the time comes. This process is actually quite simple, and in most cases can be done in just a few minutes. In this blog post, we’ll walk you through the steps of replacing your household water filter. Whether you’re a first-timer or just need a refresher, this guide will help get the job done quickly and easily.

Shut off the water supply to your house

The first step in replacing your household water filter is to shut off the water supply. To do this, locate the main water shut-off valve for your home and turn it off completely. Doing this will prevent any accidental flooding or damage when you are working on replacing the filter.

Open up the filter housing and remove the old filter cartridge

Replacing a household water filter is relatively easy and quick. The first step is to locate the filter housing, which should be close to where the main water line enters the home. Most housings are clearly marked with words such as “filter” or “water filter”. To access the filter cartridge, unscrew the housing’s lid or cover.

Depending on the type of housing, you may be able to simply lift the cartridge out of its compartment with your hands. However, if it is difficult to remove the filter cartridge by hand, use a pair of adjustable pliers and gently twist the cartridge counterclockwise until it comes free.

Rinse out the housing with clean water

Before you begin replacing your household water filter, it’s important to rinse out the housing with clean water. This will help prevent any dirt and other debris from entering the new filter. To do this, fill a bucket with clean water and use a damp cloth to wipe down the outside of the housing. Then fill the housing with clean water and allow it to sit for several minutes. Once the housing is thoroughly rinsed, you can proceed with replacing the filter.

Install the new filter cartridge into the housing

Once you have purchased the correct filter cartridge for your household water filter, it is time to install it. Start by turning off the main water supply valve into your house. Next, turn on a faucet that is downstream from the filter, such as in the kitchen or bathroom sink, and allow it to run until all of the pressure has been released from the filter.

Once the pressure has been released and there is no more water coming out of the faucet, locate and turn off the isolation valve on your household water filter housing. This will ensure that no water can enter into the housing when you remove and replace your filter cartridge.

Unscrew the sump or cap that covers the filter housing, then pull out the old cartridge. Insert your new water filter cartridge into place, making sure it is firmly seated in the housing. Replace the sump or cap and turn on the isolation valve.

Finally, turn on the main water supply valve to restore pressure to your household water filtration system. Once the pressure has been restored and water is coming out of your faucet, you can check for leaks to ensure the new filter cartridge was installed correctly. If there are no leaks, your filter replacement is complete!

Remember to regularly replace the filter cartridge in your household water filtration system so that you can continue to enjoy the benefits of clean, filtered water for your home. If you need any assistance with replacing a filter cartridge, please consult your local plumber or contact the manufacturer.

Close up the filter housing and turn on the water supply to your house

Once the filter has been replaced, it’s time to close the filter housing and turn the water supply back on. To do this, make sure your shut off valves are open and firmly tighten the lid on top of the filter housing. Turn on the cold water slowly and check for any leaks coming from around the housing or filter. If all is secure, turn the cold water back on completely.

Now you know how to replace a household water filter! Keep in mind that it’s important to check your filters regularly and replace them when necessary. This will help ensure your family has clean, safe drinking water at all times. If you have any questions or need help with this process, don’t hesitate to contact a local water filter specialist.

Check for leaks around the filter housing

Once the filter has been removed, take some time to inspect the filter housing for any cracks or leaks. If there are any cracked or leaking parts in the housing, you will need to replace it before proceeding with installing a new filter.

Install the new filter

After inspecting and replacing any faulty parts of the filter housing, it is time to install the new filter. Before inserting the new filter into the housing, be sure to check that it is compatible with your system and read any installation instructions provided by the manufacturer. Once you are certain of a proper fit and have familiarised yourself with all instructions, carefully insert the new filter into the housing.

Secure the filter housing

Once the new filter has been inserted into the housing, you will need to secure the lid of the filter casing. This is typically done by twisting or screwing it back onto the top of the filter housing. After it is secure, be sure to check for any leaks around the edges and also make sure that there is no air leakage around the filter.

Flush out the new filter

It is important to flush out any debris or sediment that may have become stuck in the new filter during installation. To do this, turn on the water and allow it to run through the system for several minutes. Be sure to check for any leaks or blockages throughout this process. Once the system is running smoothly, you can turn off the water and your new filter will be ready to use!


How often should I replace my household water filter?

It is recommended to replace your filter cartridge every 3-6 months or as per the instructions from the manufacturer.

How do I know if my water filter needs replacing?

You may notice a decrease in water pressure, an increase in taste or odor in your water, or clogs in the filter housing. All of these can be signs that it’s time to replace your filter cartridge.

How much does it cost to replace a household water filter?

The cost will depend on what type of filter you have and where you purchase it from. Generally, a replacement filter cartridge will cost between $15 and $50.

How can I tell if my water filter is working properly?

You can test the quality of your water with a drinking water test kit or take a sample to your local health department for testing. This will help you determine whether or not your filter is working properly.

How can I ensure that my family has safe and clean drinking water?

Regularly replacing your filter cartridge as recommended will help keep your water free of impurities. Additionally, you should have your water tested regularly to be sure it is safe for consumption.  Keep in mind that even if a filter is working properly, it cannot remove all contaminants from water so it is important to have your water tested.  For more information, contact a local water filter specialist for assistance. (welloflife.com)

How do I know which type of filter is best for my household?

The best type of filter will depend on the size, location and quality of your water supply. It is best to contact an experienced water filter specialist who can help you determine the right type of filter for your home.

How do I properly dispose of my old filter cartridge?

The best way to dispose of an old filter cartridge is by bringing it to a local household hazardous waste disposal facility. You can also check with your municipality or county for more information on how to safely and responsibly dispose of water filter cartridges.

How do I clean or maintain my filter housing?

Be sure to regularly check the filter housing for any signs of wear and tear. If you notice any cracks or damage, be sure to replace it immediately. Additionally, periodically wipe down the outside surface of the filter housing with a damp cloth and mild detergent to help keep it clean and free of dust or debris.


I hope this article has been helpful in providing you with the information necessary to replace a household water filter. Properly maintaining your filter housing and replacing the filter cartridge regularly is essential for ensuring safe and clean drinking water for your family.  If you have any questions or need further assistance, don’t hesitate to contact an experienced water filter specialist for advice.