22 Nguyễn Bỉnh Khiêm, Phường 1, Quận Gò Vấp, Thành phố Hồ Chí Minh
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Alum sedimentation technology

User manual:
When the pool is filled with water, settling down the solids and exotic things down the lake is a necessity for cleaning and directing the sewer. It should be used when the recirculation filter system is used by sand filter. The process is as follows:

  • Adjust the total alkalinity of the water at 100 ppm
  • Turn off the filter system.
  • Spread over the surface of the lake with a dose of about 120 grams of chemicals to empty for each 4,500 liters of water.
  • Leave it alone for 12 hours and then drain the tank – directly into the discharge.
  • For the filter system to operate again within 24 hours.
  • As soon as this process is complete, total alkalinity and pH should be adjusted.
  • Then use chlorine twice daily.
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