Well Disinfection to Prevent Cholera Outbreaks

I used to work as a WASH coordinator in a community and do regular well disinfection to prevent potential cholera outbreaks and other waterborne diseases.

We train community health workers in doing so through calculations and measures which is never easy. 

Could anyone suggest a reliable, simple and practical technology or method for less educated staff to maintain well disinfection in a region threatened constantly by cholera outbreak?