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* השאלה נוספה בתאריך: 18-03-2024

		Because such systems can produce sufficient water quality to meet high standards for unlimited irrigation by most.
		Because these systems are often simple to operate and can be used by many people
		Because many consider greywater as an effluent stream that does not pose high risks
		All of the above

Small onsite greywater treatment systems are often low tech-low costs units