Why is My BRITA Faucet Filter Leaking? [Problems Solved]

The three main things you need to know about your Brita faucet filter and its leaking are the fittings, validity, and type of water supply.


So, next time anyone asks you the same, you can reply to them with the shortest yet most versatile detail behind water leaking from filters.

Based on these criteria, your next question may be, how can a whole faucet filter system leak depend on these three simple conditions?

To this, all we can say is that a fault or crack in the fitting can ruin the whole filter system other than just leaking water. Brita faucet filter can also leak once its validity is over due to regular wear and tears. Again, according to the type of water supply, harsh water is more prone to cause water leakage than soft or normal water.

For a detailed review, keep us following.

Why is my BRITA faucet filter leaking?

Every year, gallons of water are lost due to pipe and filter leakage in the USA. It can also be that your Brita faucet filter you bought from the market is leaking and creating many other problems and suffering.

And, when it comes to your faucet filter leakage, the reasons are also countless. Out of many silly to severe issues, some of the most considerable and non-denying subjects of Brita faucet filter leakage are no less than these-

An ancient filter:

Filters designed to run conventionally cannot continue the same if it’s not changed or some parts aren’t replaced after a certain period.

The inner chamber can get jammed and cracked, and various wear and tear can also occur within them.

Clogged filter:

One of the most important reasons for your Brita faucet filter leakage can be blocking. We all know that the primary job of filters is to prevent water from contaminants and purify water.

Besides dirt, water can also contain various minerals that are difficult to remove and thus causing hard water. Your filter can only remove chlorine, mercury, cadmium, and copper.

Anything other than those such as magnesium and calcium is directly deposited in the cartridge of the filter as the filter cant remove them.

These blocks become tremendous with time and thus create holes, causing your filter to leak

Improper installation and filter not screwed in place:

We have been suggesting that all our customers follow the instruction manual precisely from long ago. If you have installed your faucet filter, the most accurate reason behind a leakage is incorrect installation.

If your filter is not snapped, screwed, or twisted correctly, what else can you expect rather than the water leaking back to the reservoir or pouring all over your hands?

O-ring is destroyed:

O-ring is a rubber or plastic agent that connects the cartridge with your filter system. If it is destroyed, all the cartridge water can leak out instead of flowing through the filter chambers.

 So, ensure you have chosen the suitable O-ring model for your Brita faucet filter.

Over tight filter or overfilled pitcher:

Often, over-tightening or filling your faucet filter can leak. If the filter is overpulled, the inner space becomes small and thus causes the unfiltered water to overflow and leak.

Also, filling water above the ‘max fill line’ can result in water leakage.

Airlock issue in the cartridge:

Deposition of air or oxygen can lead to air bubbles inside the filter. Air bubbles raise the water level inside your filter and slow down the filtration rate—all of these results in water leakages.

Incorrect pouring method and incompatible adapter:

The correct pouring method of water should be slow and steady instead of filling the filter with a gushing stream of water. Or else, water aeration can cause a spill out of water.

How to stop the BRITA faucet filter from leakage?


As the reasons for faucet filter leakage are cleared, now comes the question of how to stop them from leaking. You don’t need to think a lot, as we have also gone up with the solutions to your Brita faucet filter leakage-

  • Step 1:  First of all, depressurize your faucet filter by turning off the water supply.
  • Step 2:  By using a wrench, unscrew the filter housing to access the interior chamber.
  • Step 3: Using a mild soap, soft cloth, and warm water, clean the filter housing thoroughly.
  • Step 4: Have a proper O-ring inspection and check for maintenance or replacement.
  • Step 5: Discard the old cartridge and replace it with a new one. Also, don’t forget to use the plumber’s tape on the filter housing threads.
  • Step 6: After ensuring no leaks prevail, reinstall the filter housing and pressurize the filter to ensure water supply.


We mainly learned from these lessons that being a little bit careful at the beginning of the setup and regular maintenance can protect us from future costly repairs. Besides all these reasons behind your Brita faucet filter leakage, we should also be acknowledged how to prevent them from future leaks.

And that can only be done by replacing the filters timely and lubricating their O-rings!