This in-ground cartridge filter system wins high marks for its superior filtration thanks to four high-quality cartridge filters and a total of 425 square feet of filter media. Furthermore, this model reduces water consumption and requires less maintenance than similar cartridge filters. Consequently, this filter is more energy efficient over time.

Pros

• Fiberglass reinforced polypropylene tank stands up to the elements
• Easy open-close function
• Backwashing not required
• Two-year warranty

Cons

• Very expensive

Types of Pool Filters

• Cartridge filters: These filters cycle water through cylindrical, pleated filters, which capture debris and minute particulate. They’re easy to maintain and save on water as they don’t require backwashing. They’re suitable for in-ground and above-ground pools, though they may not be large enough for high-capacity in-ground pools.
• Sand filters: Sand filters push water through sand in the filter housing, which captures debris and particulate. They’re generally the least expensive pool filter set-up, but they’re also the least efficient at filtering extremely small particulate and may need additional chemical boosting to ensure water clarity.
• DE (diatomaceous earth) filters: Using naturally occurring sedimentary rock powder as the filtering agent, DE filters are generally regarded as providing the best water filtration. They’re the most expensive system to set up, though DE advocates say the initial cost is worth it for the superior filtration these systems provide.

What to Consider When Buying a Pool Filter

First, contact your pool supplier for the best advice when installing an in-ground pool and filter options. Secondly, be sure to ask about the pros and cons of each of the three main types of filter systems and do some independent research as well. Some points to consider include:

• Price, not just for the initial investment but ongoing maintenance and filter media replacement
• Filter capacity for your pool size
• Ease of installation and maintenance, especially if you’ll be doing your own pool maintenance and cleaning

Why You Should Trust Us

With extensive experience as a freelance writer, I’ve written numerous articles on pool and outdoor topics for Family Handyman and other reputable outlets like The Washington Post and Travel + Leisure. Based in rural Umbria, Italy, I bring a unique perspective shaped by my hands-on involvement in home improvement projects alongside my stonemason husband. This firsthand experience makes me well-suited to test and review various home products, providing readers with honest and insightful reviews.

How We Found the Best Pool Filters

To find the best pool filter, we began with fundamental research and reporting on pool filters. We examined their materials, compatibility with different pool sizes and pricing to ensure we only recommended products that offered genuine value. Next, we delved into the features that contribute to the filter’s quality, ease of use and installation process. Finally, we meticulously sifted through user reviews to see how real individuals and pools interacted with the filter, assessing its performance and durability under real-world conditions.

FAQ

Are sand or cartridge pool filters better?

Cartridge filters provide better filtration since they capture more minute particulate, but sand systems are the cheapest to install and maintain.

What is the lifespan of a pool filter?

Filter cartridges are typically cleaned every two to three weeks. Quality reusable cartridges, when properly maintained, can last up to two or three years. Additionally, soaking them periodically in a cartridge cleaning solution can further extend their lifespan.

Sand pool filters should have their sand replaced every three to five years. Occasionally using a pool sand cleaning solution helps eliminate build-up in the sand, prolonging its effectiveness.

DE filter grids, which hold the diatomaceous earth that serves as the filtering agent, usually last three to four years. However, the DE needs to be replenished each time you backwash the filter to maintain optimal performance.

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