Is water used for minor impurity, major impurity (Janaabah), menstruation, or post-natal bleeding impure?

Primary text

All types of ritual impurities—minor impurity (Hadath Asghar), major ritual impurity (Janaabah), menses (Hayd), and post-natal bleeding (Nifaas)—are treated equally regarding the resulting used water. Furthermore, water separated from washing a deceased Muslim, provided we hold it to be pure, falls under this ruling.