Please ensure Javascript is enabled for purposes of website accessibility 7 Signs You Need To Change Your Pool Filters
top of page

7 Signs You Need To Change Your Pool Filters

Are you noticing a decrease in your swimming pool's water clarity? Are your pool filters not working as well as they used to? If so, it might be time for a filter change! In this article, we will discuss 7 signs that indicate you need to change your pool filters. We will also provide tips on how to properly maintain your pool filters. Keep reading for more information!

7 Signs You Need To Change Your Pool Filters

7 Signs You Need To Change Your Pool Filters


  1. Water Clarity: If the water in your pool is cloudier or murkier than usual, it’s likely time to change your filter. This could be caused by particles that have settled on the bottom of the pool being stirred up due to agitation from swimmers, winds, or other environmental factors.

  2. High Pressure: If you notice your swimming pool's system pressure gauge reading higher than normal, this could indicate a dirty filter. The dirt and debris can block flow and cause an increase in pressure inside the filtration system, resulting in a decrease in efficiency.

  3. Low Flow Rate: If there is less water flowing through the filter than normal then it may be time for a replacement. This can be caused by a buildup of debris and dirt that is blocking the filter media, reducing the flow rate.

  4. Odor: If your swimming pool has an unpleasant odor, this could indicate that your filters need to be changed. Dirty filters are more prone to bacterial growth which can cause a nasty smell in your pool water.

  5. Noise: A loud humming or buzzing noise coming from the filtration system may mean that it's time for a new filter. This is usually caused by clogged filter media which restricts proper flow and creates a vibration inside the system.

  6. Increased Chemical Usage: If you find yourself using more chemicals than usual to keep the pool clean, it could be because your filter is not working as effectively. A dirty filter will cause contaminants to stay in the pool, requiring more chemicals for proper maintenance.

  7. Age: All filters should be replaced at least once a year or after a certain number of hours of use (depending on the type). Keeping your filters in good condition ensures that they are working properly and providing you with clean and clear water.


If you think it’s time to change your pool filters, make sure to keep up with regular maintenance as well! It's important to backwash your pool filter regularly to remove any dirt and debris that has built up over time, which can also help keep your filter running smoothly.


5 Tips For Proper Pool Filter Maintenance


1. Clean The Filter Grids Regularly – Filter grids should be inspected and cleaned every few months or so, depending on how often your pool is used. This will help keep them in top condition and running efficiently. Be sure to use a brush to scrub off any dirt or debris that has accumulated on the grids before rinsing them thoroughly with a garden hose.

2. Backwash Your Filter Weekly - Running your filter through a backwashing cycle once per week can help to remove built-up dirt and debris from the system. Doing this as part of your regular pool maintenance routine will ensure that the filter stays clean and efficient for longer periods of time.

2. Install A Pre-filter – Installing a pre-filter before your pool filter can help to keep the system from becoming clogged with debris. This will reduce the amount of maintenance you have to do, as well as helping your filter run for longer periods of time without needing to be replaced.

3. Replace The Filter Media Regularly – Depending on what type of filter you are using, it may need to be replaced every few months or so in order to continue running efficiently. Be sure to check your manufacturer’s recommendation before replacing any filter media in order to make sure that you are getting the best performance out of your system.

4. Monitor Water Flow - If you notice decreased flow through your pool filter, it could mean that something is blocking it or that there is a build-up of dirt and debris. Take the time to inspect your filter grids and pre-filter system to see if there is a noticeable blockage that needs to be cleared out. If not, then it could be time for you to replace the filter media in order to keep your pool running efficiently.

By following these tips, you can ensure that your pool filters stay clean and efficient for longer periods of time. Regular inspection and maintenance will help keep them from becoming clogged or damaged, allowing you to enjoy a crystal-clear swimming pool all season long!


It's always a good idea to change your pool filters every few months, especially if you notice any of the signs mentioned in this post. Not only will it make your pool look and feel better, but it will also help keep your swimming area healthy and free from contaminants.

Do You Need a Professional Weekly Pool Cleaning Service You Can Trust? 

Maintaining a healthy pool involves much more than just your basic cleaning. A healthy pool requires a complex understanding of chemistry, water & the principles behind balancing it. That's why your friends here at Clear Swim Pool Care are Licensed and PCCR & CPI Certified by the National Swimming Pool Foundation, and much more. We utilize the latest pool maintenance technology, saving our clients up to 50% in monthly pool energy costs using high-efficiency and variable-speed pool pumps, as well as pioneering the use of healthier alternatives to chlorine and other harsh chemicals. In this regard, we use salt-based chlorine and disinfection systems that are safer for you and your family. We proudly serve Birmingham, Alabama and the surrounding communities of Hoover, Vestavia Hills, and Mountain Brook. Contact us today to request a free quote or water analysis. We look forward to working with you!

bottom of page