The function of the pool sand filter equipment is to filter out the bacteria, viruses and small particles in the pool water, purify the pool water quality, and then the filtered water returns to the pool through the control valve at the bottom of the filter. This process is continuous and circulating. At present, there are many categories of pool sand filter equipment in the pool industry. How to choose the right pool sand filter equipment? When choosing a pool sand filter, there are some key points to consider.
What is a pool sand filter?
A pool sand filter uses one or several filter media (such as quartz sand, activated carbon), operates at normal temperature, and is resistant to acids, alkalis, and oxidation, with a pH application range of 2-13. The system is equipped with comprehensive protection devices and monitoring instruments. It has a backwash function; dirt and other pollutants are quickly washed away with minimal water consumption. The system can also be set to automatic operation according to user requirements. Under pressure, the stock solution is flocculated, adsorbed and trapped through the contact of the medium to remove impurities, so as to achieve the purpose of filtration.
Swimming pool water treatment needs to meet the conditions
- Small size, high efficiency, stable function, low energy consumption, and can ensure the water quality.
- Simple operation, convenient installation, low management costs and conducive to the automatic control of circulating water purification system.
Pool sand filter material selection
Pool sand filter equipment selection is directly related to the water quality of the pool, according to the material can be divided into engineering plastic pool sand filter, glass fiber pool sand filter, and stainless steel pool sand filter. According to the shape can be divided into side type, top type, horizontal and so on. The size should be selected based on the type and size of the swimming pool. Stainless steel pool sand filter equipment is used more in the swimming pool field, with long life, high temperature resistance, high pressure resistance, corrosion resistance, easy to maintain and other characteristics, the product can effectively purify the water quality, meet the human health requirements of the performance indicators of the equipment, can be installed in different environments.
The selection of sand filter for swimming pool
- The number of pool sand filters should be determined after technical and economic comparison according to the circulating water volume, effluent quality, operation time and maintenance conditions.
- The pressure filter should be vertical, but if the diameter is greater than 2.6m, it should be horizontal.
- Large and medium-sized swimming pool water treatment system using pressure filter, the number of filters per system shall not be less than two.
- The filter speed of the pool sand filter of large and medium-sized swimming pools should be 15~30m/h, and the filter speed of the pool filter with large personnel load should not be higher than 25m/h.
- The filter speed of the pool sand filter of the small swimming pool can be 30~40m/h.
- The filter should be equipped with a uniform water distribution device, water collection (backwash water distribution) device, manhole, inlet pipe, outlet pipe, discharge pipe, differential pressure pipe, observation hole, sampling pipe, flowmeter, and various switching valves. The flushing drain pipe should be located in a transparent pipe section or other device to observe the clear flushing drainage.
Conclusion
Pool sand filter is a kind of pressure filter, using the refined quartz sand filter material filled in the filter, when the water flows through the filter layer, the suspended matter and viscose particles in the water are removed, and the turbidity of the water is reduced. For the circulating water of the swimming pool, it is very important to filter it frequently. In order to the health of swimmers, it is very important to treat the circulating water reasonably and ensure the cleanliness of the pool water. The pool sand filter is simple and convenient to operate, low management costs, and is a good partner for swimming pool cleaning. Whether you are a regular swimmer or not, you know that the water in the swimming pool needs to be filtered regularly to ensure that the quality of the water is up to standard and meets the requirements of use.
