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* השאלה נוספה בתאריך: 27-07-2018

		In order to protect citizens, as greywater reuse is often too expensive
		Because it often contains pathogens, thus may lead to the spread of diseases
		Because it may introduce pathogens to nearby water sources
		Agencies do promote greywater reuse in general, and for toilet flushing in particular, as it saves precious water

Some health regulatory agencies object to on-site greywater reuse for toilet flushing: