Optional: Download English BioSand Filter PowerPoint - 'Set Up a Production Site'

You will need a work space to make BioSand Filters. The place where you make filters and prepare the sand and gravel is called the Production Site. How much space you need depends on how many filters you will make. You could also have an office at the same location.

You will need...

o Covered areas to work in the shade

o Areas to mix concrete, store filters, and paint filters

Area for Sieving Sand and Gravel

• Covered area to store un-sieved sand and gravel
• Raised table or platform in the sun to dry sand for sieving
• Covered area to sieve sand and gravel

• Tarp or concrete floor to sieve sand and gravel on top of
• Covered areas to store sieved sand and gravel

Area for Washing Sand and Gravel

• Covered area to wash sand and gravel
• Covered area to store washed sand and gravel

• Covered area to put washed sand and gravel in bags
• Covered area to store bags of sand and gravel ready for delivery
• Water source and drain
• Located near the piles of sieved sand and gravel

Filter Pouring Area

• Floor space for mixing concrete
• Area to pour filters, let them stand for 24 hours and de-mold filter

Filter Finishing Area

• Area to fill the filters with water and to let the filters cure for 5 to 7 days
• Area to clean filters

• Area to store clean filters ready to be painted
• Area to paint filters
• Area to store painted filters ready for delivery
• Water source and drain