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Help Center220V Automatic Pool Sand Filter With 30 GPM Flow Rate, Pressure Gauge, and Backwash Function
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Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is a professional manufacturer specializing in pool filtration equipment. With an annual export value of US$5–10 million, our products are trusted by clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We proudly present our 220V Automatic Pool Sand Filter with 30 GPM Flow Rate. This filter combines a built-in pressure gauge and an automatic backwash function to deliver crystal-clear water with minimal effort. Designed for medium-sized residential pools, it offers reliable performance, energy efficiency, and long-lasting durability—backed by over two decades of manufacturing expertise.
Key Features & Benefits
- Automatic Backwash Function: Saves water and time by automatically cleaning the filter media when pressure rises. No manual intervention required—just set the timer and enjoy hassle-free maintenance.
- Integrated Pressure Gauge: Monitors the system pressure in real time. A quick glance tells you when backwashing is needed (typically 8–10 psi above normal), ensuring optimal filtration efficiency.
- 30 GPM Flow Rate: Ideal for pools up to 15,000 gallons (approx. 57 m³). Provides a balanced flow that keeps water clean without overloading the pump.
- 220V / 50Hz Motor: Compatible with standard household electrical systems in many countries. The powerful motor drives the multi-port valve smoothly for reliable operation.
- Durable Construction: High-grade fiberglass-reinforced plastic tank resists corrosion, UV rays, and pressure. The tank is lightweight yet robust, ensuring years of service.
- Easy Installation & Maintenance: Pre-assembled multi-port valve with clear markings. Connections are standard 1.5-inch NPT for quick hookup to existing plumbing.
- Eco-Friendly Operation: Uses silica sand as the filtration medium (not included), which is a natural, reusable material. Backwash water can be directed to lawn or drainage.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | BOLI-SF30 |
| Voltage / Frequency | 220V / 50Hz |
| Flow Rate | 30 GPM (113.6 L/min) |
| Max Working Pressure | 50 psi (3.5 bar) |
| Sand Capacity | 50 kg (approx. 110 lbs) |
| Filtration Media | #20 Silica Sand (customer supplied) |
| Inlet / Outlet Size | 1.5 inch NPT |
| Tank Material | Fiberglass Reinforced Plastic |
| Valve Type | Multi-port (Filter, Backwash, Rinse, Recirculate, Waste, Closed) |
| Dimensions (L x W x H) | 24 x 24 x 52 inches (approx.) |
| Weight | 28 kg (62 lbs) empty |
Detailed Description
The 220V Automatic Pool Sand Filter is engineered to deliver superior filtration performance with minimal user intervention. The heart of the system is the multi-port valve, which automatically switches between filter and backwash modes based on a preset timer or pressure differential (optional). During normal operation, water flows through the sand bed, trapping particles as small as 20–40 microns. As debris accumulates, the pressure gauge indicates when backwashing is needed—typically a rise of 8–10 psi above the clean pressure. Simply press the backwash button (or use the automatic timer), and the valve reverses the flow, flushing trapped dirt out through the waste line. The whole process takes about 2–3 minutes and uses only a fraction of the water compared to manual cleaning.
The 30 GPM flow rate is perfectly suited for pools up to 15,000 gallons. It ensures that the entire pool volume is circulated at least once every 8–10 hours, meeting standard sanitation requirements. The 220V motor provides reliable torque for valve operation, and the integrated pressure gauge is mounted on top of the valve for easy reading. The tank is made of UV-stabilized fiberglass-reinforced plastic, which is impact-resistant, non-corrosive, and can withstand high temperatures. The internal pipework is made of high-strength ABS plastic, ensuring long-term durability.
Customer Benefits
- Save Time & Water: Automatic backwash eliminates the need to manually monitor and clean the filter. Water usage is minimized because backwashing only occurs when necessary.
- Consistently Clear Water: The sand filter effectively removes dirt, algae, and other debris, keeping your pool sparkling clean with less chemical demand.
- Lower Energy Costs: The efficient 30 GPM flow reduces pump work, and the automatic valve ensures the system runs only when needed (optional timer integration).
- Extended Equipment Life: By preventing excessive pressure build-up, the pressure gauge and backwash function protect the pump and plumbing from damage.
- Simple Installation: Standard 1.5-inch connections and pre-assembled valve make setup straightforward. No special tools required.
- Versatile Compatibility: Works with most above-ground and in-ground pool pumps. Can be used for new installations or as a replacement for older filters.
Why Choose Anping County Boli Hardware Wiremesh Products Factory?
With over 25 years of manufacturing experience, we have supplied reliable filtration solutions to clients in North America, South America, Europe, Asia, Africa, Oceania, and the Middle East. Our factory is based in Hengshui, Hebei, China, and we ship from multiple ports including Tianjin, Qingdao, Shanghai, and Foshan. We have an annual export value of US$5–10 million, reflecting the trust of global buyers. Every filter undergoes rigorous quality checks before packing. We offer customizable options such as different voltage configurations, sand media, and packaging. Our professional team is ready to assist with technical support and after-sales service. Contact us today for a quote or to discuss your specific pool filtration needs.
Frequently Asked Questions
-
Q: What size sand should I use? Can I use other media?
A: We recommend #20 silica sand (0.45–0.55 mm). Alternatively, you can use glass media or zeolite, which may offer better filtration. Please confirm compatibility with your local distributor. -
Q: How often should I backwash the filter?
A: Backwash when the pressure gauge reads 8–10 psi (0.55–0.69 bar) above the normal clean pressure. For typical residential pools, this may be every 1–2 weeks, but frequency depends on usage and debris load. -
Q: Is the filter suitable for saltwater pools?
A: Yes, the fiberglass tank and ABS internal components are corrosion-resistant, making it suitable for saltwater pools. However, we recommend periodic inspection of the valve seals. -
Q: Can I use this filter with a variable-speed pump?
A: Yes, the filter can handle flow rates up to 30 GPM. If your pump operates at higher flow, you may need a bypass or a pressure regulator. Consult your pump manual. -
Q: What is the warranty period?
A: Standard warranty is 12 months from date of purchase against manufacturing defects. Extended warranty options are available upon request. -
Q: Does the filter come with sand?
A: No, sand is not included to avoid shipping weight and customs issues. You can purchase #20 silica sand locally. -
Q: How do I set the automatic backwash timer?
A: The valve features a simple mechanical timer (24-hour or 7-day, depending on model). Refer to the user manual for step-by-step programming. Alternatively, you can use a pressure differential controller (available as an accessory). -
Q: What are the shipping dimensions and weight?
A: The filter is packed in a sturdy carton measuring approximately 25x25x55 inches, with a gross weight of about 65 lbs (30 kg). Shipping to most destinations is available.
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