Step 2: Rehabilitation and cleaning of wells
Disinfecting a well without first removing the source of contamination provides only temporary health protection. Rehabilitation may include:
1. Repair/replacement of the pumping mechanism.
2. Removal of polluted water and debris from well using either buckets or pumps.
3. Sealing the top of the well using a clay sanitary seal built around top of well (Figure 2).
4. Construction of a drainage apron and head wall around the well to prevent surface water, insects and rodents entering the well.
5. Relining the well to reduce subsurface contamination.