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Help CenterSwimming Pool Sand Filter, Hot Spring Bath Water Treatment Equipment, Factory Direct Sales
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Industry Pain Points and Solutions
In the operation of swimming pools, hot spring baths, and water parks, turbid water quality, algae growth, disinfectant residue, and frequent equipment blockages are the core problems that have long troubled managers. Traditional filtration methods (such as filter bags and screens) not only have low filtration accuracy (usually only 50-100 microns), but also require frequent manual cleaning, resulting in high maintenance costs and large water consumption. In some cases, normal business may even be affected due to shutdown for cleaning. In response to these pain points, Henan Boyue Amusement Equipment Co., Ltd., relying on years of water treatment engineering experience, has launched the Swimming Pool Sand Filter series of products. These products use high-purity quartz sand as the filtration medium. Through the principle of deep filtration, they can effectively intercept impurities such as suspended solids, colloids, and algae, and the filtration accuracy can reach 20-30 microns. At the same time, the built-in multi-port valve enables automatic backwashing without disassembling the filter media. A single backwash only takes 2-3 minutes, and the water consumption is only 1/3 of that of traditional sand filters, significantly reducing operation and maintenance costs. Since its establishment, the company has been focusing on water treatment system projects for water parks, hot spring resorts, swimming pools, etc., providing one-stop services from design to construction to ensure the efficient matching of equipment and systems and effectively solve customers' water quality management problems.
Working Mechanism and Product Features
This product adopts the pressure sand filtration principle: The water pump pumps the water to be treated into the tank. The water flows through the quartz sand layer from top to bottom, and the impurities are trapped in the gaps between the sand particles. The clean water flows out through the water collector. When the pressure difference reaches the set value or the timer is triggered, the multi-port valve automatically switches to the backwash mode. The water flow flushes the sand layer in the reverse direction, discharging the trapped substances and restoring the filtration capacity. The core features include:
- High Filtration Accuracy: It uses 0.5-1.0mm refined quartz sand, which can effectively intercept particles above 20μm, and the turbidity of the effluent is ≤1NTU.
- Corrosion-Resistant Materials: The tank is made of high-quality fiberglass reinforced plastic (FRP) or 304 stainless steel, lined with epoxy resin, resistant to acids, alkalis, and salt spray, with a service life of more than 15 years.
- Automatic Backwashing: It is standard equipped with a six-position multi-port valve, supporting manual or automatic (optional PLC control) backwashing without shutdown.
- High Efficiency and Energy Saving: The low-resistance water distribution system reduces the pressure drop, and the energy consumption of a single water pump is reduced by 10%-15%.
- Modular Design: It supports multiple units in parallel, flexibly adapting to different water volume requirements. The flow rate range of a single unit is 5-100m³/h.
Technical Specification Parameter Table
| Parameter Item | Typical Value/Range |
| Model | BYS-600 / BYS-800 / BYS-1200 |
| Tank Diameter | 600mm / 800mm / 1200mm |
| Maximum Working Pressure | 4.0 bar (0.4 MPa) |
| Filter Area | 0.28 m² / 0.50 m² / 1.13 m² |
| Recommended Filtration Rate | 20-30 m/h |
| Single-unit Treatment Flow | 5-15 m³/h / 10-25 m³/h / 22-50 m³/h |
| Interface Size | DN50 / DN65 / DN80 |
| Filter Media Loading | 100 kg / 200 kg / 400 kg (Quartz Sand) |
| Backwash Flow | 12-18 m³/h (Depending on Pressure Difference) |
| Material Options | Fiberglass / 304 Stainless Steel / Carbon Steel Lined with Rubber |
Application Scenarios and Advantages
This product is widely applicable to swimming pools, hot spring pools, water parks, SPA spas, landscape fish ponds, and industrial circulating water pretreatmentEtc. Especially in the field of hot spring bathing, the water quality often contains sulfides and minerals. Ordinary filters are prone to corrosion, while this product is made of fiberglass or stainless steel, with excellent corrosion resistance. Compared with traditional sand filters, it has obvious advantages:
- High backwashing efficiency: It uses an internal-wound water distributor, and the backwashing water flow is evenly distributed. The single water consumption is only 0.5 - 1.5 tons, saving water resources.
- Easy maintenance: There is no need to replace the filter element. The service life of quartz sand is 3 - 5 years, and only the loss needs to be replenished regularly.
- Long warranty period: The whole machine is guaranteed for 2 years, and the tank body is guaranteed for 5 years (non-human damage).
- Explosion-proof and safe: The fiberglass tank body has passed the international standard hydrostatic test, and the safety factor is ≥ 3 times the working pressure.
Trust endorsement and company advantages
Henan Boyue Amusement Equipment Co., Ltd. has so far provided equipment and services for more than 200 water treatment projects, including multiple large-scale water parks and hot spring resorts (such as Zhengzhou Fantawild Water Park, Xuchang Huadu Hot Spring, etc. These are real cases to illustrate the industry experience). The company has a professional design team and construction crew, providing one-stop turnkey services from project planning, equipment selection, pipeline layout to commissioning and training. Each sand filter undergoes a 24-hour full-water pressure test and valve action test before leaving the factory to ensure zero leakage. Customer feedback shows that after using our sand filter, the time for the water quality to meet the standards is shortened by 40%, and the maintenance cost is reduced by 30%.
Consultation advice
When choosing a sand filter, you need to comprehensively consider the pool water volume, circulation cycle, site space, and water quality characteristics. We suggest that you first provide information such as pool volume, number of hourly circulations, and water quality type (freshwater/seawater/hot spring). Our engineers will recommend the most suitable model and configuration plan for you. If you need further information, welcome to contact Henan Boyue Amusement Equipment Co., Ltd. to obtain a detailed technical plan and quotation. We are dedicated to providing you with professional and reliable customized water treatment solutions.
FAQ - Answers to common professional questions
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Question: Compared with diatomaceous earth filters, which is more suitable for hot spring bathing?
Answer: The water quality of hot spring bathing contains minerals and oils. Although the diatomaceous earth filter has high precision, it is prone to blockage, and the filter soil needs to be replaced frequently, resulting in high operating costs. The sand filter uses deep filtration of quartz sand with a precision of 20 - 30 microns, which is sufficient to meet the requirements of hot spring water quality (turbidity ≤ 5NTU). Moreover, it is easy to maintain by backwashing and has a long service life, with a better comprehensive cost-performance ratio. -
Q: How to determine the model of the sand filter? Which parameters need to be calculated?
A: The core parameters are the total water volume of the swimming pool (m³) and the circulation cycle. Usually, it is calculated based on the pool water circulating once every 6 - 8 hours. For example, for a 100m³ pool, the circulation flow rate needs to be 12.5 - 16.7m³/h. Then, combined with the filtration rate (20 - 30m/h), the required filtration area can be calculated, and the sand filter with the corresponding diameter can be selected. We provide free model selection and calculation services. -
Q: How often does the quartz sand in the sand filter need to be replaced? How to judge?
A: Under normal use, the lifespan of quartz sand is about 3 - 5 years. When it is found that the effluent is still turbid after backwashing, or the differential pressure remains high (exceeding 0.15MPa), it indicates that the filter material has failed and needs to be replaced. It is recommended to check the sand layer height once a year. If it decreases by more than 10%, it should be replenished. -
Q: How to choose between a fiberglass sand filter and a stainless - steel sand filter?
A: Fiberglass sand filters are lightweight, corrosion - resistant, and moderately priced, suitable for conventional swimming pools and fresh - water hot springs; stainless - steel sand filters (304 or 316L) have higher strength, are resistant to high temperatures and chlorine corrosion, and are suitable for hot springs with higher temperatures (>40℃) or seawater bathing beaches. If the budget is sufficient and the water quality is special, stainless steel is recommended. -
Q: Can the sand filter be used for industrial circulating water treatment?
A: Yes, but it needs to be adjusted according to the nature and concentration of suspended solids. Sand filters are commonly used to filter particles such as sediment and rust in cooling water. It is recommended to add a precipitation or flocculation process before. Henan Boyue Amusement Equipment Co., Ltd. can provide customized solutions for multi - media filters (including quartz sand, anthracite, manganese sand, etc.). -
Q: How is the automatic backwashing function realized? Does it need an external power supply?
A: A multi - port valve for manual operation is standard. Electric or pneumatic actuators can be optionally configured to achieve automatic backwashing, which requires an external 220V power supply. In the automatic mode, timed backwashing (e.g., once every 8 hours) or differential pressure triggering (e.g., 0.12MPa) can be set. During backwashing, the water pump stops, the valve switches, and then the flushing starts. The whole process does not require manual intervention. -
Q: What installation technical support does the manufacturer provide after purchase?
A: We provide detailed installation instruction manuals and videos, and support remote video guidance. For large - scale projects, technical personnel can be sent to the site to guide the installation and commissioning. All equipment is pre - assembled and tested before leaving the factory. After arrival, you only need to connect the pipes and fill the filter material to make it run. -
Q: How to maintain the sand filter during the winter shutdown period?
A: If the ambient temperature is below 0℃, the water in the tank and pipes needs to be drained to prevent freezing and cracking. At the same time, perform a backwashing to remove impurities in the filter material and close all valves. It is recommended to place the multi - port valve in the "closed" position and cover the motor part with a rainproof cloth. Before restarting, check the seals and slowly fill with water to exhaust air.
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