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Sand & Multimedia Filters


Sand filters are used to remove suspended solids from water and wastewater. Because they have one layer of filter media, sand filters remove only relatively large solids (normally in the range of 40 micron and larger). The effective size of each granule of sand typically varies from 0.35mm – 1.2mm. Larger granules yield coarser filtration. Finer granules yield finer filtration.

Sand filters are typically used for:

  • Irrigation water
  • Storm water
  • Cooling water
  • Swimming pool water
  • Water in fountains and other water features

Removing suspended solids smaller than 40 microns requires filters with either two or three layers of filter media. These are referred to as dual-media filters or multi-media filters. When sized properly and with the correct configuration of filter media, these filters can remove suspended solids as small as 5 micron.

Dual and Multi-media filters are typically used for:

  • Industrial process water
  • Waste water
  • Potable (drinking) water

 All of our sand & multimedia filter units are skid-mounted, factory assembled, wired, and tested, and delivered ready for installation. Piping, valves, filter media, pressure gauges and accessories are included with filter systems. Solar power, media air scour, and rinse cycle are available as options. Filter systems are engineered to require little maintenance. A separate source of water supply or a pump for backwash are seldom needed.

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Chemical Feed Solutions Ltd
6a Enterprise Drive Henderson Auckland

PO Box 104-055, Lincoln North, Waitakere 0654
Phone: 09-837-6075
Fax: 09-837-6075
E-mail: enquiries@chemfeed.co.nz
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Master Electricians

Chemical Feed Solutions is a member of the Electrical Contractors Association of New Zealand