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¿Con qué frecuencia se debe cambiar la arena?
¿Con qué frecuencia se debe cambiar la arena?
La arena no necesita remplazarse. La arena se limpia mediante el procedimiento de revolver y botar.
Última actualización el Lunes 08 de Marzo de 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
may 23 - may 26
Low Cost Sanitation Workshop (Laos)
may 28 - jun 1
Project Implementation for the Biosand Filter Workshop (Bolivia)
may 30 | 6
Coffee @ CAWST
jun 3 - jun 6
Low Cost Sanitation Workshop (Laos)
jun 3 - jun 6
Low Cost Sanitation Workshop (Afghanistan)
Ver todo...
CAWST.
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