Water filter

During filtration, water passes through filters, some made of layers of sand, gravel, and charcoal that help remove even smaller particles.

A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools.

Dependencies

• Water
• Water filter
  • Charcoal
  • Gravel
  • Sand

See also

• Ceramic water filter
• Food preservation

References

This article uses material from the Wikipedia article Water_filter, which is released under the Creative Commons Attribution-ShareAlike 3.0 Unported License (view authors).