17 Reasons Why My Brita Longlast Filter Is So Slow?

Everyone is familiar with Brita, a well-known water filtration company. Brita filters are among the most popular and widely available filters.

Although the Brita water filter is an excellent and inexpensive way to receive clean filtered water, Longlast might not operate as expected, and the filtration rate may be too low.

Brita Longlast filters can be slow for various reasons, including aeration from tap water, clogged bubbles in the filter, high sediment levels, low water pressure, and an old Brita filter. Furthermore, improper filter installation and frequent use may cause the filter to run slowly.

There are 17 reasons why your Brita filter is running too slowly. Following these procedures will return your Long-last filter performance to its prior level. These will assist you in improving the filtration speed while saving time and money.

Let’s go and find a perfect solution to your challenging issue ūüôā .¬†

What Kinds of Brita Filters Are There? 

Brita filters are available in five different types: 

  • Standard¬†‚Äď removes mercury, copper, chlorine, cadmium, zinc
  • Longlast¬†‚Äď removes lead, mercury, benzene, chlorine, cadmium, asbestos
  • Stream¬†‚Äď removes chlorine, particles, trichlorobenzene
  • Bottle¬†‚Äď removes chlorine, particulates
  • Faucet¬†‚Äď removes lead, mercury, chlorine, benzene, asbestos, particulates, trichlorobenzene.

16 Main Reasons Why the Brita Long-last Filter Is So Slow

Main Reasons Why the Brita Long-last Filter Is So Slow

Because the primary goal of a water filter is to remove potentially hazardous chemicals and other impurities from tap water, the Brita Longlast Filter must operate in this sense.

The Brita Longlast Filter has been shown to eliminate mercury, lead, and cadmium from tap water and the taste and odor of chlorine, just like the Brita standard filters.

One Brita Longlast Filter can filter up to 120 gallons of water. Furthermore, it has three times the filtration capacity of a typical filter.

If the water filtering out of your Brita Longlast faucet appears to be slower than usual, or slower than you believe it should be, there are fifteen 17 possible causes:

1- Air Blockage in the Filter

The Brita Longlast filter often slows down due to trapped air bubbles. The water flow may be severely reduced or stopped once the air is trapped in the filter.

How to Check Air Trapped in the Filter?

Place the filter in a water-filled sink or jar to see if it has captured bubbles inside. If the filter floats, there is a blockage of air.


  • Dip the filter in cold water for a few minutes.

Rinse the filter vertically in cold water for 15-20 minutes to remove the air block. Reinstall the filter after a 20-second washing under running water.

  • Squeezing

You can adequately release the air pocket from the filter by squeezing it 4 to 5 times while the water is running through it.

  • Tapping

To release the bubbles, gently tap the filter on the side of the sink while holding it underwater. Check to see whether it will sink again before replacing the filter in the pitcher. Reinstall the filter once it no longer floats.

2- Particles Trapped in the filter

The Brita Longlast filter is an excellent technique to remove pollutants from tap water such as lead, asbestos, and other particulates.

It has a remarkable ability to remove up to 99.5 percent of lead.

If any particles become stuck in the filter, gently spray water in the opposite direction into the filter to release the sediments. Because there’s a danger you’ll harm your Brita filter if you do it incorrectly, proceed with caution.

3- Faucet Aeration

Because of the increased disturbance caused by aeration, filtration may be slowed, particularly while filling the tank of your filter.

If this is the case, avoid turning on the faucet completely. Fill your pitcher slowly and steadily with water to maintain a continuous filtration process.

Allowing the stream of water to fall directly on top of the filter is not recommended. Even the company claims that Brita’s Longlast Filters filter highly aerated water.

4- Poor Installation

A slow water flow rate can occur if the filter is not installed correctly. Filters that aren’t appropriately placed will never filter water, leaving you with unclean water.

It is vital to follow the user guide carefully to accomplish the installation accurately.

Always remember that the fitting processes for the Brita standard and Longlast filters are different.

  • To ensure a flawless fit, listen for a snap and click sound when you twist the filter into position while installing both filters.
  • Also, please double-check that the O-ring/gasket seal is positioned correctly in its position in your pitcher.

If you’re still confused, ask a Brita professional to explain the filter installation process to you.

 Make sure the mounting surface of your faucet filter or pitcher is clean and dust-free that could ruin your filtration equipment before reinstalling the filter.

5- Clogged valves

Blockages in the valves are one of the key factors that reduce the filtration rate of Brita Longlast. It may be due to sediments, debris, or wrong connection.

If you have multiple valves installed, such as a dual check valve or a pressure limiting valve, you should double-check that the pressure reduction valve is not set too low.

It means that your filter flow rate may be affected if the pressure limiting valve becomes clogged. It may be connected to the water supply system before the filter, so double-check.

6- Delay in Filter Replacement

If you fail to replace your Brita Longlast filter, your system will generate less water over time.

Delaying the replacement of the Brita filter may result in a reduction in the filtration rate. If you wish to have trouble-free filtered water, you should change the filter on a regular schedule.

To keep track of the filter life on your Brita device, look at the filter change indicator. Based on the reading of the filter change indication, replace your filter.

After 120 gallons, it is necessary to replace the Brita Longlast filter.

Here’s an overview of how often you should replace each type of Brita filter for improved results:

Brita Filter Type Replace Filter After

  • Brita Standard Filter Two months (40 gallons)
  • Brita Longlast Filter Six months (120 gallons)
  • Brita Stream Filter Two months (40 gallons)
  • Brita Bottle Two months (40 gallons)
  • Brita Faucet Four months ( 94 ‚Äď 100 gallons)

Does Brita Water Filter Remove Calcium?

7- Clogged Filter

A filter’s filtration speed diminishes over time when it becomes clogged with particles.

If your tap water contains too much sediment, such as silt, minerals, copper, or grit, the filter may become clogged. 

Filter clogging can be caused by hard water. It could also be happened by an air log or a clogged hard piece.

The only method to fix it is to remove and replace the filter. It is essential to replace it to consume clean water. Additionally, if you continue to use a clogged filter, it will eventually exhaust.

8- Expired Filter

The Brita Longlast filter has several meshes and filtration settings. These various filtering levels screen impurities of different sizes and qualities. 

It can also filter down to the tiniest particles, ensuring the maximum level of filtration.

How to Recognize an Old Filter?

Due to faulty filtrations, you can recognize the expired filter. As a result, you’ll have:

  • ¬†Smelly water
  • ¬†Water having a brownish or cloudy appearance¬†
  • ¬†Chemical-tasting water

Simply put, you’re consuming tap water that’s contaminated with hazardous chemicals and other contaminants. As a result, you should replace the filter right away.

However, a filter’s standard lifespan is¬†5 to 7 months,¬†so if yours is showing strange signals, you should contact customer service or replace it.

9- Blockage in the Filter Housing Area

Debris can quickly accumulate inside the filter housing region while changing an outdated water filter. Filtering equipment such as Brita Longlast filters is particularly prone to this type of blockage.

The debris gets caught in the gaps in the housing. Hence, you need to take proper care of it and flush it before using a water filter to minimize clogging.

To avoid blockages, clean the housing area every time you replace or install a new water filter.

If you’re setting up a new water filter, you can also discuss this with a plumber.

10- Incorrect Filter Flushing

Before using a new Brita filter, it is necessary to flush the old one. Luckily, it is effortless to accomplish.

For the faucet filter

  • ¬†Install the faucet filter and run the water for five minutes to flush the filter before using it.
  • ¬†Do not consume the water when flushing; instead, dispose of it or use it to water plants.

For the Standard, Longlast, Stream, and Bottle filters:

  • ¬†Pre-soaking these filters in cold water for 15-20 minutes is required. After that, wash for 30 seconds under running tap water.
  • ¬†After that, install the filter, fill the tank, and let the water drain thoroughly through the filter.
  • To preserve its purity, the water needs to be flush at least two times.
  • ¬†There may be carbon particles in the first few fillings, but this is normal and safe.

Do Brita Water Filters Soften Water? Fact!!!

11- Mineral Deterioration

One of the significant causes of your filter’s slow performance is mineral degradation.

Mineral ions found naturally in our water supply, such as calcium and magnesium, can cause scale deposition on objects that come into touch with water regularly.

Scale deposits build up over time, leading your filtering system to malfunction.

12- Filtration of Other Beverages, Such as Soda and Coffee

Due to curiosity, some people attempt to filter beverages such as coffee, soda, and cold drinks from their water pitcher.

These liquids contain various colors, particles, and additives, making the Brita Longlast filter flow extremely slow.

It is something you should resist doing with your filter. It isn’t suitable for your filter.

The Brita Longlast Filter is only intended to filter water and should be used for that purpose.

13- Reduced Water Pressure

If you’re using a Brita Longlast filter, you should also examine the pressure of your tap water to figure out what’s causing the slow flow rate. The Brita Longlast filter’s filtration rate might be slowed by low water pressure.

The Brita Longlast filter has multiple layers of filtration and filters the water using tap water pressure. If the pressure is too low, the water may not flow properly, and your Brita Longlast filter will be halted.

Check the water pressure in the faucet to remedy the problem.

Causes of Low Water Pressure

  • If your Brita filter is running slower than expected, check for pipe leaks and sediments in your pipeline first.
  • You may clean your faucet’s aerator to remove debris and keep it clean.
  • Bent tubing can also create low water pressure, which you can address by calling a plumber.

14- Excessive Use of Filter

The usage of water filters continually leads to filter blockage and the demand to replace filters before they expire.

Brita filter has an indicator light. These indicators are pretty beneficial. As an example, green suggests that everything is OK. However, red implies that it is time to change the filter.

To ensure that you always have clean water, keep an eye on the filter replacement indicator.

Keep in mind that frequent filter use can cause the filter to exceed its maximum pollutant storage capacity.

Without a doubt, using the filter to its total capacity and efficacy impacts the filter’s capacity and effectiveness.

15- Carbon Block Stops Working

The carbon in the Brita filter is noted for filtering the tiniest particles and components that aren’t filtered by regular filters. However, it is unrealistic to expect carbon to have an indefinite lifespan.

Its job is to filter a certain amount of sediments and contaminants.

Because tap water contains many toxins and pollutants, the carbon block may malfunction.

You can replace this carbon block, which is a beautiful feature. Removing the filter, on the other hand, is the best choice!

How Does Brita Filter Work Too Fast? Explained!!!

16- Defected Filter

Brita Longlast filters must be replaced every 120 gallons of filtered water, as previously mentioned.

Filters can occasionally become defective for no apparent reason and even before the predicted period.

You can verify this by watching the provided circumstances.

  • ¬†Water dispersion under low pressure
  • ¬†Slow or speedy water flow
  • ¬†Water that stinks¬†
  • ¬†Water that has an unusual taste or color change

If you encounter one of these before filter replacement, your filter most likely has a damaged layer that cannot filter.

 So, to avoid any significant health issues, it is best to change the filter.

17- Quality of Water

low¬†water quality is the primary cause of your Brita Longlast filter’s poor functioning. Lower water quality causes filters to clog more quickly, reducing Brita’s Longlast flow rate.

Hard water contains an excessive amount of contaminants, which clog the pore spaces of your water filter and obstruct flow.

Usually, a brand new Brita Longlast filter requires 10-15 minutes to fill the tank; however, blocked particles can cause this to take longer.

Similarly, water with a large amount of chlorine in it may limit the water flow rate. Filters are affected by toxins, silt, and heavy metals in low-quality water, which reduce the flow rate and reduce filter life.

How to Test the Sediment Levels in Tap Water

Follow the steps below to check the sediment level in your tap water:

  • Fill a glass with water from the faucet and set it aside on the shelf for 30 minutes.
  • If you notice hazy impurities at the bottom of your glass, it’s a sign that your tap water requires more filtering.

Before putting the Longlast Filter to your faucet, we recommend installing a whole-house water filter.


Drinking pure water is an essential requirement for a healthy life. If your Brita Longlast water filter suddenly stops functioning, don’t panic. There’s no reason to discard your filter; a little maintenance and replacement can go a long way.

We explained some possible causes of low filtration speed with their detailed solutions. These solutions are effective with the Brita filter and resolve slow filtering issues for Longlast.

To summarize, the Brita Longlast filter might slow down for various reasons, including clogged valves, improper installation, defective filter, reduced water pressure, or an expired filter.

So, the next time, if any of the above events occurs, check and act on the tips as mentioned above to enjoy healthy and clean water once more.

We hope you find this article interesting and informative!

How can you fix a slow Brita Filter?

Anyone can repair slow filtering issues by using the solutions listed below. These are the ones.

  • ¬†If the filter hasn’t been changed in a while, watch the filter change indicator and replace it.
  • ¬†Gently tap or flush the filter to dislodge any trapped air bubbles.
  • ¬†To remove dirt and silt, spray the filter with water.
  • ¬†Adjust the water pressure to force water through the filter.
  • ¬†Flush water through the filter from the other side to clear the particle.
  • ¬†Check the quality of your water to ensure that it is not too contaminated to run through your Brita filter. Moreover, install a secondary filtration system in that instance.

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