1. The 3 pot system
This is a very simple system for providing cleaner water. It will not provide pure water, but some of the diseases will be removed.
DAY 1: Collect 1 pot of water and leave it to settle for 1 day.
DAY 2: Pour off the clear top water into a clean pot and use the remainder for washing.
Collect another pot of water and leave it to settle for 1 day.
2. Using sunlight
Many water-borne diseases can be destroyed by simply filling clear glass or plastic bottles with water and leaving them in strong sunlight all day.