Why Does My Pur Filter So Slow? { Reasons + Solutions }

In today’s world, ensuring access to clean drinking water is more important than ever. To this end, PUR filters are widely used to remove harmful contaminants from water and make it safe for consumption. However, sometimes the filtration rate may be too slow or insufficient.

This can be caused by various factors such as air blockages, high sediment levels, hot water or mineral damage, incorrect installation, or an old filter. Fortunately, PUR mineral clear filters provide greater contaminant reduction and certified removal of over 70 contaminants from water – more than other leading brands.

To quickly fix a slow PUR filter, there are 10 specific reasons to consider – all of which need pointing out before attempting any repair yourself—these range from issues with the installation process to mineral build-up on the filter itself.

With detailed instructions in the guide on how to fix each of these problems, you can get your PUR filter running smoothly again without much hassle. Knowing why your PUR filter is slow and getting the right information will allow you to tackle any potential issues easily and efficiently.

Here are Some Reasons: Why Does My Pur Filter So Slow

1. Air Bubbles In The Filter

Air bubbles in the filter of a PUR are an incredibly common issue and can dramatically slow down performance. This can be especially frustrating to users with faucet filters, as these are often used for daily tasks like filling up cups and washing vegetables. Fortunately, there is an easy way to remove air bubbles from your filter quickly.

The first step to removing air bubbles from a filter is to separate it from its mount unit or pitcher. Submerge the filter in a jar or glass filled with water that covers it entirely and leave it submerged for at least 15 minutes.

After the duration has elapsed, please remove the filter and lightly tap it against the side of the sink or bench. This will remove any remaining trapped air that may have been blocking your water flow. Doing this regularly can prevent further build-up of unwanted air bubbles and keep your device running optimally all year round.

2. High Sediment Levels

High sediment levels can also affect the performance of your PUR filter and slow down its flow rate significantly. This is because sediment particles are too large to pass through the filter, causing a blockage and restricting water flow.

To address this issue, you can use a sediment filter pre-filter prior to purifying your water. These filters are designed to remove larger particles and ensure that your PUR filter isn’t overwhelmed by sediment.

3. Hot Water or Mineral Damage

Hot water or mineral damage can cause a decrease in the flow rate of your PUR filter, as the heat from the hot water can weaken the filter’s integrity over time.

To avoid this issue, you should always use cold water for filtration purposes and try to keep it at room temperature. Additionally, if you have a high mineral content in your water, it may be best to use a PUR filter for Installation.

4. Filter Housing Blockage

Filter housing blockage is a common issue that can arise when using water filters. It can be caused when replacing the water filter, as debris may become lodged within the filter housing area. This tends to be more prominent in devices with threading that require the twist of the filter into place; however, any filter system has the potential to form a blockage.

One of the most popular filtration systems includes PUR faucets, which have either internal or external threading and are, therefore, more likely to suffer from this problem.

To help eliminate this issue, cleaning out the area thoroughly each time a new filter is installed or replaced – doing so would prevent possible blockages by wiping away all dirt and grime that has begun accumulating along the threads or inside any slots on the housing element.

5. Clogged Filter

Clogged filters are a common occurrence caused by sediment in tap water. Various things, including clay, minerals, rust, and sand in the water supply, can cause sediment.

When this happens, it is normal for the filter to slow down its filtration speed. In some cases, there may be an unexpected decrease in the rate due to too much sediment resulting from high Tannin, Iron, or Color levels.

Fortunately, even if your filter becomes clogged with sediments, it is still doing its job properly; a filter is supposed to remove debris from the water, hence why they usually last longer than advertised when taken care of right.

However, if the area has hard water or a lot of particles naturally found in the water, it could mean that you would need to replace or clean your filters more frequently than the ones recommended by PUR. It all depends on how often you use them and how good your local tap water quality is.

6. Low-Pressure Issues

Low water pressure, including PUR filters, can be a major issue for any filtration system. This is because the low pressure means that insufficient force is behind the water to push it through the filter and into your glass or pitcher.

To address this problem, you need to check if there are any leaking pipes in your home or other sources of water waste. Additionally, you can use a pressure regulator to ensure the filter receives enough pressure to function correctly.

7. Poor Installation

Installing a PUR filter correctly ensures it operates properly and doesn’t experience any flow rate issues. If installed incorrectly, the filter may not be able to sit tightly in place or be positioned so that water cannot pass through efficiently.

This can lead to slow filtration or an unexpected decrease in water pressure when using the filter. To avoid this issue, read all instructions properly before installing and consult a professional if needed.

8. Broken Parts

While filters are designed to last for some time, parts can break down over time due to the wear and tear of regular use. PUR filters can manifest in several ways, including cracked or broken seals, faulty valve components, and other issues that reduce the filter’s effectiveness.

To prevent this from happening, it is important to regularly inspect the filter and replace any broken or worn-out parts as soon as possible.

9. Low Water Pressure

Low water pressure can cause a PUR filter to work slowly. The filter needs enough pressure to push water through the filter media and out of the faucet. Low pressure reduces the flow rate, meaning water takes longer to pass through.

Several factors, including clogged pipes, low municipal water pressure, or a faulty faucet aerator, can cause this. To boost water pressure, check for any possible sources of blockage and replace any faulty parts.

10. Poor Water Quality

If you have hard water in your home, it can increase the amount of minerals and sediment in the water supply. This can clog up the filter faster than normal, resulting in slower filtration speeds or frequent blockages.

You can address this issue by using a water softener to reduce the amount of minerals and other particles in the water before it reaches the filter.

Frequently Asked Questions [FAQs]

1. Why Is My New Water Filter So Slow?

The suggested interval for replacing filters is between 1 to 2 hours. Following the first use, the filter should take 15-30 minutes. If there are any concerns regarding slow filtration, flushing the filter again may be required.

2. What Can I Do To Increase The Speed Of My Filter?

If you want to increase the speed of your water filter, there are several steps you can take. To start, check your local water pressure and make sure it is set at an appropriate level. Additionally, you may want to consider installing a pressure regulator or a water softener if your home has hard water. You should also inspect the filter to ensure it is clean and functioning properly. Lastly, replacing or cleaning the filter more frequently than recommended may help improve the flow rate.

3. How Long Should A PUR Filter Take?

A PUR filter typically takes 30 minutes to filter a full pitcher or bottle of water. However, the time it takes can vary based on the size of the container and how much sediment is in the water. Additionally, some filters are designed to remove chlorine or other taste and odor-causing contaminants, which can also slow down filtration time.

4. Do Water Filters Reduce Flow Rate?

Do water filters reduce the flow rate? The answer is yes, but the degree of reduction will depend on your filter type. Most water filters designed for home use, such as faucet-mounted or countertop models, are designed to remove particulate matter from the water and will cause a decrease in the water flow rate.

5. How Do You Increase Filter Efficiency?

Filter efficiency is key to keeping your water clean and safe for drinking. When filters become clogged with sediment, dirt particles, and other contaminants, their filtration rate slows significantly. Fortunately, you can take a few steps to help increase your filter’s efficiency so it works better and faster.


PUR filters are an effective way of ensuring safe drinking water. Still, they can slow down due to issues such as air blockages, high sediment levels, hot water or mineral damage, incorrect installation, or an old filter. Knowing why your PUR filter is slow and getting the right information can allow you to tackle any potential issues easily and efficiently to enjoy clean drinking water whenever you need it.


You may also like

How Often to Water Poinsettia

How Often To Water Poinsettia? Care Guide For Live Christmas Plant

The poinsettia is a popular holiday plant. Its bright red leaves and

​Read More
How to bath a dog without water waterev

How To Bath A Dog Without Water: 13 Steps (With Pictures)

A dog is a member of our family, and they deserve to

​Read More
How often do you water outdoor potted plants

How Often Do You Water Outdoor Potted Plants? – 12 Tips For Healthy Flowers

When determining if your plants need water, the finger-dip test remains the

​Read More
How often to water impatiens

How Often To Water Impatiens? New & Overwatered Impatiens Care & Tips

Impatiens (also known as busy Lizzy) are beautiful houseplants that are easy

​Read More
How often to water fruit trees

How Often To Water Fruit Trees? Young Fruit Trees Need Plenty Of Water

A fruit tree is a perennial plant that grows from a seed.

​Read More
How often to water an Orange Tree

How Often To Water An Orange Tree: Tips, Tricks, And Requirements

Orange trees are some of the oldest living things on earth. They

​Read More
{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}

Check the articles below

December 9, 2023

The poinsettia is a popular holiday plant. Its

December 6, 2023

A dog is a member of our family,

December 1, 2023

When determining if your plants need water, the