In small scale domestic use, Cloze (1): JXUwMDJmJXUwMDE2JXUwMDE1JXUwMDExJXUwMDE3 is boiled to kill organisms that cause Cloze (2): JXUwMDNjJXUwMDBkJXUwMDFhJXUwMDE2JXUwMDA0JXUwMDEyJXUwMDE2JXUwMDE2 like bilharzia,cholera and Cloze (3): JXUwMDJjJXUwMDBkJXUwMDA5JXUwMDE4JXUwMDA3JXUwMDA2JXUwMDBk .Boiling Cloze (4): JXUwMDJmJXUwMDE2JXUwMDE1JXUwMDExJXUwMDE3 is a rather expensive method of treatment and can only be done with small amounts,especially for drinking.However it is advisable to boil Cloze (5): JXUwMDJmJXUwMDE2JXUwMDE1JXUwMDExJXUwMDE3 if the source is suspected to be unsafe e.g.water from most surface sources.