Assertion: calcium hypochlorite's chlorine | /r/HasProperty | added
Facets:
Source sentences:
text: Chlorination can be done at any time/point throughout the water treatment process - there is not one specific time when chlorine must be added.
text: If the water has a high chlorine demand, 3 drops of chlorine solution in every litre of water may not be enough to leave a residual, and more chlorine will need to be added.