Course on Rapid Gravity Sand Filters on 27 September 2018.
The cost is $20. Registration forms may be obtained from Dr. Banda at ZIE at email@example.com
To protect yourself and others against COVID-19, clean your hands frequently and thoroughly. Use alcohol-based hand sanitizer or wash your hands with soap and water. If you use an alcohol-based hand sanitizer, make sure you use and store it carefully.