Translations:Water - Biosand Filter/37/en

  • Utility knife
  • Source of heat if you are using polyethylene tubes (for example: propane or a kerosene torch, wood fire, electric burner)
  • Wire brush, sandpaper or steel wool to clean the mold
  • Level
  • Wood wedges in different sizes
  • 2 9/16" wrenches
  • Containers to measure the sand, the gravel and the cement
  • 1 1.5m (5’) metal rod (like rebar) or a piece of wood
  • Rubber or wooden mallet
  • Trowel
  • Shovels
  • 1 wrench 1-1/2"
  • Hammer
  • 4 wooden blocks (about 5cm square)
  • Brush