ESPA Ashiba Smooth Deep Sand Cylinder, this surface smooth deep sand cylinder is made of glass fiber reinforced polyester, corrosion-resistant, and has high mechanical, chemical, and thermal properties. One of its main features is the height of its filtering layer. When dirt is driven through the sand bed, it is trapped in the tiny spaces of the sand particles. At the beginning, a new filter layer will eliminate larger particles, but as the sand bed is stacked, it will be able to remove fine particles. The higher the sand bed, the better its performance.

Sand tank filter is an early and widely used type of water deep treatment in the field of environmental protection. Quartz sand filtration is an effective means of removing suspended solids in water and is an important unit in the deep treatment and reuse of wastewater and water treatment. Its function is to further remove pollutants that have already been flocculated in water. It achieves water purification through the interception, sedimentation, and adsorption of filter materials.

Characteristics of sand tank: simple structure, easy operation and maintenance, automatic control of equipment operation, high filtration efficiency, low resistance, large processing flow rate, and few backwash times.
Scope of application: Suitable for swimming pools, hot springs, saunas, landscape pools, water parks, bathhouses, spas, etc.