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Nuer Drop of Hope BioSand Filter Production Site

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

Stage A: 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

o An area to sieve and wash sand

o Access to water (tap or pump)

o Drains for wastewater

o Road access

o Toilets and hand washing facilities

o Somewhere to lock up valuable tools and supplies, such as a storage room or shed

o Electricity (optional) - if you need lights or if you will be using power tools or electric vibrators. This is a decision you can make if you are making a lot of filters for a big project.


 
 

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

Tools and Materials Required to Make and Install BSF

  • Cement
  • Outlet tube - Polyethylene or vinyl
  • Diffuser(s)
  • Lid(s)
  • Sand and gravel (mixed or separate) suitable for Filter
  • Sand and gravel (mixed or separate) suitable for concrete mix
  • Cooking oil, butter, margarine or lard
  • Chlorine (example: 5.25% bleach)
  • Paint to finish exterior of filters
  • Educational materials handouts to leave with users
  • Safe water storage containers for users
HANDOUT:

Download Handbook #5 Set Up a Production Site English Educational Handout

 

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