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Hand dug well disinfection – Chlorination – Manual, example of Inter Aide in Sierra Leone,

By 5 October 2010July 24th, 2023  

Protocol for the punctual chlorination of a hand dug well, either:

  • at installation, as a routine procedure for its first use,
  • for disinfection when bacteriological* analysis show a contamination – we call it ”shock chlorination” when the treatment required curing and cleaning the wall of the well.

the manual explains how to calculate the dosage according to the depht of the well.

* For more information on bacteriological analysis, please refer to