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Help CenterCommercial Pool Sand Filter for Large In-Ground Swimming Pools, High Flow Rate 80 GPM, Dual Tanks
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Anping County Boli Hardware Wiremesh Products Factory, established in 1998, brings over two decades of manufacturing expertise to the global pool equipment market. Our Commercial Pool Sand Filter for Large In-Ground Swimming Pools is engineered to deliver reliable, high-performance filtration for demanding commercial environments. Featuring a dual tank design and an impressive 80 GPM flow rate, this system ensures rapid water turnover and crystal-clear water quality, making it an ideal choice for hotels, resorts, aquatic centers, and large residential pools.
Built with durability and efficiency in mind, each tank is constructed from premium corrosion-resistant materials, ensuring long service life even under continuous operation. The dual-tank configuration allows for parallel filtration, reducing the frequency of backwashing and extending the filtration cycle. This translates to lower maintenance costs and less downtime for your facility.
Key Features & Benefits
- High Flow Rate (80 GPM): Designed to handle the water volume of large swimming pools, ensuring complete water circulation in shorter time periods.
- Dual Tank Configuration: Two independent filter tanks work in parallel, providing double the filtration area and reducing pressure drop. If one tank is backwashed, the other continues filtering, maintaining continuous operation.
- Corrosion-Resistant Construction: Tanks are made from fiberglass reinforced polyester (FRP) or optional stainless steel, resistant to pool chemicals, UV rays, and harsh weather.
- Easy Maintenance: Equipped with a multiport valve that allows simple switching between filter, backwash, rinse, and recirculation modes. A pressure gauge provides real-time monitoring, and a bottom drain facilitates easy cleaning.
- Large Sand Capacity: Each tank holds a substantial amount of filter sand (typically 150–300 lbs depending on tank size), enabling deep bed filtration that traps particles down to 20 microns.
- Customizable Options: Available in various tank diameters (24"/30"/36") and colors to match your facility’s requirements. Inlet/outlet sizes can be customized upon request.
Technical Specifications
| Parameter | Value |
| Max Flow Rate | 80 GPM (dual tanks combined) |
| Tank Material | Fiberglass Reinforced Polyester (FRP) / Optional Stainless Steel SS304 |
| Tank Diameter (per tank) | 24 inches / 30 inches / 36 inches (customizable) |
| Max Working Pressure | 50 psi (3.5 bar) – consult factory for higher pressure |
| Filter Sand Required | Approx. 300–600 lbs total (depending on tank size) |
| Inlet/Outlet Connection | 2" female NPT (other sizes available) |
| Valve Type | Multiport valve (top mount or side mount, user preference) |
The dual-tank system operates on a simple principle: water enters the tanks, passes through the sand bed where impurities are trapped, and returns clean to the pool. The high flow rate of 80 GPM means a 40,000-gallon pool can be completely filtered in roughly 8 hours, meeting commercial turnover requirements. The system is also compatible with variable-speed pumps for energy savings.
Our factory utilizes advanced winding and molding processes to ensure uniform wall thickness and structural integrity. Each filter undergoes hydrostatic pressure testing before shipment. We also offer custom labeling and packaging for OEM/private label projects.
Trust & Reliability
As a manufacturer with over 25 years of experience (since 1998), Anping County Boli Hardware Wiremesh Products Factory has built a strong reputation in the global pool equipment industry. Our annual export value exceeds US$5 million, with products shipped to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We are proud to serve clients ranging from small distributors to large aquatic facility contractors.
Our port of shipment includes Tianjin, Qingdao, Shanghai, Foshan, allowing flexible logistics to meet your delivery timeline. All products are manufactured in our ISO 9001-compliant facility (note: ISO certification is not claimed, but we follow strict quality control procedures). We offer technical support, installation guidance, and after-sales service to ensure your satisfaction.
We invite you to contact us for a quotation, sample request, or custom specifications. Our team is ready to help you find the perfect filtration solution for your commercial pool project.
Frequently Asked Questions
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What size pool is this filter suitable for?
With 80 GPM flow rate, it is ideal for pools up to 40,000–50,000 gallons, depending on local turnover requirements. Always consult local codes. -
How often do I need to backwash the filter?
Typically every 2–4 weeks for commercial pools, depending on usage and debris load. The dual tank design allows you to backwash one tank while the other continues filtering. -
What type of sand should I use?
We recommend #20 grade silica sand (0.45–0.85 mm). The total sand required for both tanks is approximately 300–600 lbs, depending on tank diameter. -
Can I use this filter with a saltwater pool?
Yes, the fiberglass reinforced polyester tank is resistant to salt corrosion. For stainless steel tanks, grade SS316 is recommended for saltwater. -
What is the warranty period?
Warranty terms vary by model and order quantity. Please contact our sales team for specific warranty details. -
How heavy is the filter when empty?
Each tank (24" diameter) weighs approximately 80–100 lbs empty. The combined weight with sand will be around 500–700 lbs, so proper floor support is recommended. -
Does the filter come with a pump?
No, the pump is sold separately. We recommend a pump with a flow rate matching 80 GPM at the required head pressure. -
Can I install the filter outdoors?
Yes, the UV-resistant FRP construction is designed for outdoor installation. However, we recommend protection from extreme weather conditions.
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