Sanitation Systems QuizL3P2U9,1.13

What is the main purpose of greywater recycling systems?

• To collect rainwater for household use

• To filter and disinfect water for drinking

• To pump water from the mains cold water supply

• To use water from washbasins and showers for non-drinking purposes

Where is the water collected in a grey water recycling system?

• In the mains cold water supply

• In the washing machine

• In the roof space holding cistern

• In a cistern installed below ground

What is the main concern with grey recycled water?

• It is always free from bacteria and contamination

• It is safe for drinking without any disinfection

• It has a short life span before becoming unsafe for use

• It is too dirty to be used for any purpose

What must be done to prevent contamination issues in grey water recycling systems?

• Connect it to the mains cold water supply

• Keep it separate from the mains cold water supply

• Use it for drinking purposes only

• Allow bacteria to multiply in the water

What is strictly forbidden in grey water recycling systems?

• Using the water for non-drinking purposes

• Filtering and disinfecting the water

• Pumping water to the roof space holding cistern

• Cross-connections between grey water recycling and mains cold water