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CAWST

How often should the sand be replaced?

How often should the sand be replaced?

The sand never needs to be replaced. The sand is cleaned by the swirl & dump maintenance.

Mise à jour le Lundi, 08 Mars 2010  
  • About Us
  • What We Do
  • Where We Work
  • Get Involved
  • Resources
    • Publications & Materials
    • Household Water Treatment
    • Biosand Filter
    • Sanitation
    • FAQs
      • Biosand Filter
      • Biosand Filter - Version 10
      • Training Workshops (Calgary)
      • Training Workshops (International)
    • Youth Educator Resources
    • Resources for grant seekers
    • Videos
  • mai 23 - mai 26 Low Cost Sanitation Workshop (Laos)
  • mai 28 - juin 1 Project Implementation for the Biosand Filter Workshop (Bolivia)
  • mai 30 | 6 Coffee @ CAWST
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CAWST.
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