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Reliable, Low-Maintenance Filtration with Sand Pool Filters
Looking for a durable and cost-effective way to keep your pool water clean? Sand pool filters are one of the most popular filtration systems for both above ground and inground pools. These systems use specially graded sand to trap dirt and debris, returning crystal-clear water back to your pool.
At Doheny’s, we carry a wide selection of sand filters and sand filter systems from trusted brands like Hayward, Pentair, and our own Doheny’s line—perfect for pool owners who want simplicity, performance, and long-term value.
How Do Sand Filters Work?
Sand filters operate by your pump pushing water through a tank filled with filter sand. As the water flows through, the sand traps particles as small as 20 microns—including dirt, leaves, oils, and other debris. Clean water is then returned to your pool.
Over time, the sand becomes clogged with debris. To clean it, you simply backwash the filter, reversing the water flow to flush out the trapped particles. Sand typically needs to be replaced every 5–7 years.
Benefits of Sand Pool Filters
- Low Maintenance: Just backwash as needed or every 1–2 weeks.
- Long-Lasting Media: Filter sand lasts up to 7 years with proper care.
- Cost-Effective: Lower upfront and maintenance costs than other filter types.
- Durable Design: Built to handle high flow rates and large pool volumes.
Shop the Best Pool Sand Filters for Any Pool Size
At Doheny’s, we’re proud to offer our own line of high-performance sand filter systems, built for reliability, easy maintenance, and maximum filtration efficiency for performance you can trust. In addition to our exclusive models, we also carry sand filters from top-rated brands like Hayward and Pentair. Whether you’re upgrading your current system or outfitting a new pool, you’ll find the perfect sand filter to suit your pool size, pump capacity, and water flow needs—all backed by our expert support and unbeatable value.
Doheny’s exclusive sand filter systems offer unbeatable value and powerful performance for above ground pools. Each system is built with a strong polymeric tank, multi-position dial valve, and a complete pump-to-filter setup designed for energy efficiency and easy installation. Available in multiple sizes to fit a wide range of pool volumes.
For Above Ground Pools
- Doheny’s Vortex Sand Filter System – Available in 14”, 16", 19", and 24" tanks with pumps from .35 HP to 1.5 HP.
- Doheny’s Sand Filter System
For Inground Pools
- Doheny’s Sand Filter Tanks – Budget-friendly options with rugged performance and outstanding reliability.
- Hayward Sand Filters – Rugged performance and reliability.
- Pentair Filters – Rugged construction, reliable performance.
Choosing the Right Size Sand Filter
The size of your sand filter should match your pool’s volume and pump flow rate. Here’s a general guide:
| Pool Size | Recommended Tank Size |
|---|---|
| Up to 10,000 gallons | 16"–19" tank |
| 10,000–20,000 gallons | 22"–24" tank |
| 20,000+ gallons | 26"–31" tank |
Need help sizing your filter? Call our experts at 800-574-7665 for personalized recommendations. *It is perfectly fine to buy larger filtration systems for smaller pools. More water turnover equals more filtration equals less hassle and more fun.
Filter Media & Accessories
- Pool Filter Sand – Specially graded for optimal filtration
- Alternative Media – Zeolite and glass media for enhanced performance
- Multiport Valves – For backwashing, rinsing, and winterizing
- Replacement Parts – Laterals, O-rings, pressure gauges, and more
Shop Filter Media →
Shop Multiport Valves →
Frequently Asked Questions
How often should I backwash a sand filter?
As-needed or typically every 1–2 weeks, or when the pressure gauge reads 8–10 psi above normal.
How do I maintain my pool sand filter?
When your filter pressure rises 8–10 PSI above normal or your water stays cloudy despite treatment, it’s time to clean your sand filter. Routine backwashing can help, but deeper cleaning may be needed to remove oils and debris that clog the sand bed. Check out our blog to learn how to clean your pool filter properly.
How long does filter sand last?
Most pool filter sand lasts 5–7 years before needing replacement.
How do I change the sand in my pool sand filter?
The process involves safely removing old sand, inspecting the filter laterals, and refilling with the correct type and amount of new filter sand. Follow our step-by-step guide to changing sand in a pool filter.
Can I use a sand filter for a saltwater pool?
Yes! Just make sure the filter and valve components are rated for saltwater use.
What’s the difference between sand and DE or cartridge filters?
Sand filters are the most low-maintenance and budget-friendly option, but they don’t filter as finely as DE (3-5 microns) or cartridge filters (5–7 microns).
Why buy pool sand filters from Doheny’s?
Doheny’s offers a wide selection of reliable, brand-name sand filters at unbeatable prices—all backed by expert support and fast, free shipping. With decades of experience in pool care, we’re the trusted choice for pool owners across the country.
Sand Filters Guides
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Sand Pool Filters: How to Change the Sand
Sand filters for pools are known for typically requiring much less maintenance than other types of pool filtration systems, but they do require some care to stay running at their optimum level. Part of sand filter maintenance involves changing the sand in the filter. Depending on how much your pool is used and what type of filter system you have, the sand will typically need to be replaced about every 5-7 years in order to keep everything running efficiently.
Over time, as the sand in your filter is run through the system, the granules become smoother and the sand filtration process becomes much less efficient. When your sand filter stops working as well, that means it’s pumping harder and harder and overworking to do what should be a simple job. Keeping up with changing the sand on a schedule will help keep everything running smoothly and help to keep your filter running for as long as possible.
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