Pool Filter Cartridges

Common Misconceptions About Pool Filters Debunked

cartridge pool filter

Are you tired of dealing with cloudy or green pool water despite having a filter installed? Well, before you point the finger at your pool filter, it’s important to know that there are several misconceptions about these vital pieces of equipment that can lead to ineffective filtration. In this blog post, we’re going to debunk some of the most common myths and misunderstandings surrounding pool filters so that you can properly maintain your system and enjoy crystal clear water all summer long. So let’s dive in and set the record straight!

Common Misconceptions About Pool Filters

There are a lot of misconceptions about pool filters out there. Here are some of the most common ones:

1. Pool filters are only for keeping the water clean.

Wrong! Pool filters play an important role in maintaining your pool’s pH levels and keeping the water balanced. They also help to remove impurities and contaminants from the water, making it safer for you to swim in.

2. You only need to change your pool filter when it gets dirty.

Not necessarily. Depending on the type of pool filter you have, you may need to change it every few months or so, even if it doesn’t appear to be dirty. Check your owner’s manual or ask your pool professional for guidance on when to change your particular filter.

3. All pool filters are the same.

Nope! There are different types of pool filters available on the market, each with its own set of benefits and features. The type of filter you need will depend on the size and type of pool you have, as well as your budget and personal preferences.

4. You can clean a pool filter with just any old hose.

No way! You should never use a regular hose to clean your pool filter – doing so can damage the filter and void any warranty that may be in place. Instead, invest in a specialized pool filter cleaning kit that contains everything you need to clean your filter safely and effectively

– Sand Filters

As the name suggests, sand filters use sand to help trap debris and dirt in your pool. Sand filters are a popular choice among pool owners because they are relatively low-maintenance and can be very effective at keeping your pool clean.

However, there are a few misconceptions about sand filters that we want to clear up:

1. Sand filters require a lot of maintenance.

This is simply not true! While you will need to occasionally backwash your filter to remove trapped debris, this is a quick and easy process that does not require a lot of time or effort.

2. Sand filters are not effective at trapping small particles.

Again, this is not true! Sand filters can actually be very effective at trapping small particles, as long as the sand is properly maintained and replaced on a regular basis.

3. You need to use special chemicals with a sand filter.

No, you do not! You can use any type of pool chemical with a sand filter – just be sure to follow the manufacturer’s instructions carefully.

– Cartridge Filters

Most pool owners don’t know much about their pool filters and how they work. As a result, there are many misconceptions about cartridge filters. Here are some common misconceptions about cartridge filters debunked:

1. Cartridge filters can’t handle large amounts of debris.

This is simply not true. In fact, cartridge filters are very good at handling large amounts of debris. They have a large surface area, so they can trap more debris than other types of filters.

2. Cartridge filters require a lot of maintenance.

Again, this is not true. Cartridge filters actually require very little maintenance. You’ll need to clean them every few months, but that’s it!

3. Cartridge filters are expensive.

Yes, cartridge filters can be more expensive than other types of pool filters. But they’re worth the investment because they last longer and require less maintenance.

You can search for the pool filter you need in the PUREPLUS store.

– DE Filters

There are a few different types of pool filters, but DE (diatomaceous earth) filters are by far the most common. And yet, there are still a lot of misconceptions about how they work. Let’s debunk some of the most common DE filter myths:

pool cartridge filter

MYTH: DE filters can’t trap small particles.

FACT: DE filters are actually very effective at trapping small particles. In fact, they’re so good at it that they can actually remove particles that are smaller than the pores in the filter itself!

MYTH: DE filters require a lot of maintenance.

FACT: DE filters only require a little bit of maintenance. You’ll need to add more diatomaceous earth to the filter every few weeks, but other than that, there’s not much you need to do.

MYTH: DE filters are expensive.

FACT: While DE filters may cost more upfront than other types of pool filters, they’re actually very affordable in the long run. Plus, they last longer than other types of filters, so you won’t have to replace them as often.

What is the Truth About Pool Filters?

Most pool filters will last around 3-5 years before they need to be replaced. The type of filter you have will determine how often you need to clean it. Cartridge filters will need to be cleaned more often than sand or DE filters.

pool filter system

The truth is, your pool filter is one of the most important parts of your pool system and without it, your pool would be a breeding ground for bacteria and algae. Your filter works to remove these contaminants from the water so you can enjoy a clean and safe swimming experience.

– Sand Filters

While sand filters are a popular choice for pool owners, there are some misconceptions about them that need to be debunked.

For starters, many people think that sand filters are low maintenance. However, they do require regular backwashing and cleaning in order to function properly.

Another common misconception is that sand filters can filter out all types of debris. However, they are only effective at removing larger pieces of debris from the water.

Some people believe that sand filters are the most affordable option. While they can be a more affordable option upfront, they may require more frequent replacement than other types of pool filters.

– Cartridge Filters

Cartridge filters are one of the most popular types of pool filters on the market today. They are relatively low maintenance and can be quite effective at keeping your pool clean. However, there are a few misconceptions about cartridge filters that we want to clear up.

First, let’s dispel the myth that cartridge filters are not as good as sand or DE filters. This simply isn’t true! Cartridge filters can do an excellent job of trapping dirt and debris, and they don’t require nearly as much backwashing as other types of filters.

Another common misconception is that cartridge filters are difficult to clean. While it is true that you can’t simply hose them off like you can with a sand or DE filter, they are not difficult to clean. Simply remove the cartridge from the filter housing and rinse it off with a hose. You may need to use a brush to remove any stubborn dirt or debris, but overall, cleaning a cartridge filter is a pretty simple process.

Some people believe that cartridge filters aren’t very durable and have to be replaced frequently. While it’s true that they won’t last forever, most cartridge filters will last for several years before needing to be replaced. And even when they do eventually need to be replaced, they are relatively inexpensive – especially when compared to other types of pool filters.

So there you have it – three common misconceptions about cartridge filters debunked! If you’re in the market for a new pool filter, don’t let these myths keep you from considering a cartridge filter. They can be an excellent choice for keeping your pool clean and clear!

cartridge filter for pool

– DE Filters

There are two types of pool filters- cartridge and diatomaceous earth (DE). Many pool owners believe that DE filters are superior to cartridge filters, but this is not always the case. Here, we debunk some common misconceptions about DE filters:

1. DE filters require less maintenance than cartridge filters.

This is false- both types of filters require regular backwashing and cleaning. However, DE filter grids need to be replaced every few years, while cartridge filter elements can last for several years.

2. DE filters are more efficient than cartridge filters.

This is also false- while DE filters do have a higher filtration rate, they can clog more easily than cartridge filters. This means that they may need to be back washed more often.

3. DE filters remove smaller particles than cartridge filters.

This is true- DE filters can remove particles as small as 3 microns, while most cartridge filters only remove particles down to 10 microns. However, many pool owners believe that smaller particles are better filtered by cartridge filters because they have a higher dirt holding capacity.

Tips for Proper Maintenance of Pool Filter Systems

It is important to maintain your pool filter system properly in order to keep your pool clean and safe for swimming. Here are some tips for proper maintenance of your pool filter system:

  • Clean the filter cartridge regularly. Depending on the type of pool filter system you have, you may need to clean the cartridge monthly or quarterly.
  • Backwash the filter regularly. This will help remove any dirt or debris that has accumulated in the filter.
  • Inspect the hoses and connections periodically for leaks.
  • Replace the filter cartridge when it is worn out.
  • Be sure to winterize your pool filter system properly if you live in an area where temperatures drop below freezing.



Pool filters are an essential part of maintaining a healthy and clean swimming pool. We hope this article has helped debunk some of the common misconceptions that people have about pool filters. These devices should be regularly checked and serviced to ensure they are functioning at their peak performance. With proper maintenance, a good quality filter will help keep your pool water safe, clear, and inviting for everyone who jumps in!

filter for pool

Leave a Reply

Your email address will not be published. Required fields are marked *