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Help Center40-inch Swimming Pool Sand Filter for Hot Springs and Baths, High-intensity
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1. Industry Pain Points and Solutions
In the operation of swimming pools, hot spring baths, and water parks, water quality management has always been a core challenge. Traditional water treatment methods rely on manual chemical dosing and frequent water changes, which are not only costly and inefficient but also difficult to maintain stable water quality standards. Especially for hot spring bath places, where the water has a high mineral content and large temperature fluctuations, ordinary filters are prone to problems such as corrosion, blockage, and insufficient filtration accuracy, resulting in turbid water, bacterial growth, affecting the tourist experience, and increasing the equipment maintenance burden. Henan Boyue Amusement Equipment Co., Ltd. has been deeply involved in the water treatment field for many years and has launched the 40-inch high-strength fiberglass sand filter tank in response to the above pain points. This product uses high-quality fiberglass winding technology, is corrosion-resistant and pressure-resistant, and is specially designed for high-demand scenarios such as hot spring baths. By optimizing the water distribution system and backwashing technology, it effectively solves the problems of easy uneven flow and incomplete backwashing of traditional sand tanks, significantly reducing energy consumption and maintenance costs while ensuring filtration accuracy, and helping customers achieve the goals of stable water quality compliance and continuous operation.
2. Product Working Mechanism and Technical Features
This sand filter tank is based on the deep filtration principle. It is equipped with selected quartz sand filter media (particle size 0.5 - 1.2mm). The water flow is evenly distributed to the filter media layer through the water distributor, and impurities such as suspended solids and colloids are trapped in the gaps of the filter media. As the operation time increases, the resistance of the filter layer rises, and the system automatically or manually triggers the backwashing program. The reverse water flow is used to flush the filter media, discharging the trapped impurities out of the tank and restoring the filtration capacity. The main features include:
- High-strength structure: It is formed by continuous glass fiber winding, with a uniform wall thickness. The pressure resistance level reaches over 2.5kg/cm², suitable for high-temperature water environments (40 - 60℃) in hot springs and bath centers, without the risk of rust.
- Large flow design: The 40-inch diameter (about 1 meter) provides an effective filtration area of 0.78㎡. The single-unit water treatment capacity can reach 15 - 20m³/h, suitable for supporting small and medium-sized swimming pools or hot spring pools.
- Multi-port valve control system: It is standardly equipped with a 6-position multi-functional valve, which can switch between 6 modes: filtration, backwashing, forward washing, sewage discharge, circulation, and closing. The operation is simple and no additional tools are required.
- Low-resistance water distribution system: It uses an ABS engineering plastic water distributor with uniform holes, ensuring even water flow distribution, avoiding short circuits, improving the utilization rate of the filter media, and extending the backwashing cycle.
- Durable seals: The O-rings and flange gaskets are made of EPDM material, which is heat-resistant and aging-resistant, ensuring no leakage during long-term use.
| Parameter Items | Technical Specifications | Remarks |
| Model | BY-40S | Standard Type |
| Diameter | 1000 mm (40 inches) | Including flange |
| Height | 1450 mm | Including valve |
| Filter Area | 0.78 m² | Effective Area |
| Recommended Flow Rate | 15-20 m³/h | Adjust according to water quality |
| Working Pressure | ≤2.5 kg/cm² | Safe Range |
| Filter Media Loading Capacity | 300-350 kg | Quartz sand 0.5-1.2mm |
| Interface Size | DN50 / 2" | Flange or thread is optional |
| Applicable Temperature | 4-60°C | Suitable for hot springs/bathing |
III. Trust Endorsement and Customer Value
Henan Boyue Amusement Equipment Co., Ltd. has provided water treatment system solutions for multiple domestic water parks, hot spring resorts, and swimming pools. The projects cover North China, Central China, and Southwest China. For example, a large hot spring resort has adopted multiple 40-inch sand filter tanks from our company, which are used in conjunction with circulating water pumps and automatic dosing systems. There have been no corrosion or failures after more than two years of operation, and the water quality has continuously met the requirements of the national "Swimming Pool Water Quality Standard" (CJ/T 244-2016). All our products have undergone factory pressure tests (1.5 times the working pressure) to ensure the safety and reliability of each device. The company provides a full-process service from scheme design, equipment selection, installation and commissioning to after-sales training. We are especially good at customized configurations according to the customer's actual water quality, water volume, and site conditions. If you are planning the water treatment system for a swimming pool, hot spring, or bathing center, it is recommended to first clarify the basic parameters such as the pool volume, circulation cycle, and water source type. We can provide free technical consultation and equipment selection suggestions. Welcome to contact Henan Boyue Amusement Equipment Co., Ltd. to obtain the sand filter tank configuration scheme and quotation suitable for your project.
FAQ
- Q: What size of swimming pool is suitable for a 40-inch sand filter tank? A: Usually, a 40-inch sand filter tank is recommended for a treatment flow rate of 15 - 20m³/h. Calculated according to a standard circulation cycle of 6 hours, it can match a swimming pool of about 100 - 120m³. If the pool is larger or the water quality requirements are high, multiple units need to be used in parallel or a larger specification model should be selected.
- Q: How is the corrosion resistance of the sand filter tank when used in hot spring bathing? A: The fiberglass material itself has excellent chemical corrosion resistance and can resist the erosion of common sulfides and chlorides in hot spring water. We use a food-grade resin lining to ensure that it will not cause secondary pollution to the water quality, and it is suitable for hot spring water environments at 40 - 60℃.
- Q: How to determine the backwashing frequency of the sand filter tank? A: Usually, it is judged according to the pressure gauge reading. When the pressure gauge index rises by 0.5 - 1kg/cm² compared with the initial operating value, backwashing is required. Generally, under normal use of a swimming pool, backwashing is carried out once every 3 - 7 days. For hot spring bathing, depending on the degree of water pollution, it may be shortened to 1 - 2 days.
- Q: Can other filter materials be used to replace quartz sand? A: Yes. This sand filter tank is designed to be compatible with a variety of filter materials, such as anthracite, garnet, and activated carbon (which needs to be used in conjunction with quartz sand). When replacing the filter material, pay attention to the particle size and specific gravity to avoid loss during backwashing. It is recommended to use standard quartz sand to obtain the best cost - performance ratio.
- Q: What should be paid attention to during installation? A: The sand filter tank should be installed on a flat and solid foundation. Valves should be reserved on the inlet and outlet pipes for maintenance. When using the tank for the first time, air bubbles need to be discharged according to the "forward flushing" procedure, and the tightness of each interface should be checked. The manhole cover on the top of the tank body needs to be tightened evenly to prevent leakage.
- Q: How long is the product warranty period? What about the after-sales service? A: Henan Boyue Amusement Equipment Co., Ltd. provides a 12 - month warranty period from the date of delivery (excluding vulnerable parts such as sealing rings and valve handles). During the warranty period, any damage caused by manufacturing defects will be repaired or replaced free of charge. The after - sales team can provide remote guidance or on - site service to ensure that customers have no worries.
- Q: In what aspects is the high strength reflected? A: The tank body is made by the glass fiber winding process, with a strength more than 30% higher than that of ordinary hand - laid fiberglass. The pressure resistance level reaches 2.5kg/cm², and it has good impact resistance. It is not easy to deform or crack in high - temperature and high - humidity environments such as hot spring baths, and its service life exceeds 10 years.
- Q: Do you provide non - standard customization services? A: Yes. We can customize the interface size, valve type (such as manual valve, automatic pneumatic valve, electric valve), color, etc. according to customer requirements. If the pool body is special or there are restrictions on the installation space, please provide detailed drawings, and the technical department can issue a customized plan.
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