The Homeowner’s Guide to Choosing a Pool Filter

A pool without a pool filter is not a sight you want to see. Filters rid your swimming pool of bacteria, dirt, and debris, which in turn keeps your water nice and clear. Not to mention, they protect swimmers from getting sick too.

It’s a crucial element of the swimming pool experience. Without one, we guarantee your local, public swimming pool would not be a popular spot in your community. Read on to discover the ABCs of pool filters and how to go about choosing one for your backyard pool.

The 3 Types of Pool Filter Systems

There are three main types of pool filtration units that you need to be familiar with.

These are:

  • Sand Filters
  • Cartridge Filters
  • DE Filters

Sand Filters

In a nutshell, sand filters are the most commonly used filters in residential pools. The reason for this being that they’re inexpensive and easy to maintain. They may be an ideal choice for the budget-conscious homeowner. The downside is, sand filters are not as effective at catching dirt. What’s more, homeowners get stuck with the tedious task of backwashing.

Cartridge Filters

Cartridge filters, on the other hand, are fast becoming the most popular choice for new pool installations among homeowners, and they’re the units we typically recommend. These bad boys will keep your water looking cleaner—catching particles 2x smaller than sand filters. They’re also extremely compact and easy to clean.

Forget about the dreaded backwashing job. Cartridge filter systems eliminate the need for the task altogether. What’s more, cartridge filters are known to extend the time between cleaning and replacing filter parts. With some models, you’ll only have to clean them once every season.

DE Filters

Finally, DE filters are the Rolls-Royce of pool filtration systems. They’re capable of trapping outrageously tiny particles, using advanced diatomaceous earth technology. Usually, they’re not the go-to option for the average homeowner.  

Choosing and Sizing Your Pool Filter

So, now that you know the kinds of filters out there, you can make an informed decision on the one that’s right for you. But your job’s not done yet! Next, you need to size your filter correctly.

Typically, we recommend oversizing your filter system, and we’ll tell you why! Although buying a bigger filter might seem like a waste of money, it’s actually a great trick to save money in the long run. Oversizing your filter will reduce the stress load on your filter and pump, effectively extending its lifespan. You’ll also cut down on the frequency it needs to be cleaned, which is good news for your to-do list.

Take Advantage of the Palm Beach Pool Doctor’s Extensive Filter Inventory

If you’re unsure about the kind or size of filter you need, don’t hesitate to drop us a line! The team at Palm Beach Pool Doctor is always happy to help. By the way, our online store stocks a wide range of filter systems for every size and type of pool. Some of the reputable brands we carry are:


We hope this short guide gives you all the need-to-know information on pool filters. If you still want to know more, feel free to drop by our shop for a visit!

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