What is the estimated daily consumption of wholesome water per person per day according to Building Regulations Part G?

• 125lts

• 150lts

• 100lts

• 200lts

Which British Standard offers guidance for the installation of rainwater harvesting systems?

• BS 1710

• BS 8525

• BS 8515

• BS 8520

What identification is required for the pipework on any rainwater harvesting or greywater recovery system?

• Red adhesive tape

• Blue adhesive tape

• Green adhesive tape with a black stripe

• Yellow adhesive tape

What must an installer avoid when connecting up either a rainwater or greywater system as per the Water Regulations?

• Use of blue adhesive tape

• Direct connection to the sewer system

• Use of green adhesive tape

• Cross-connect with the mains wholesome cold water supply

What is the main purpose of rainwater harvesting?

• To reduce water usage at the point of use

• To increase water consumption

• To waste water from household activities

• To allow rainwater to run off down to the surface water sewer

What is the main purpose of greywater re-use?

• To waste water from household activities

• To increase water consumption

• To reduce water usage at the point of use

• To allow rainwater to run off down to the surface water sewer

What is the main source of greywater?

• Toilet flushing

• Drinking water

• Rainwater harvesting

• Sinks and showers

What is the main use of rainwater harvesting?

• Water for gardens and flushing in toilets

• Water for swimming pools

• Cooking water

• Drinking water

What is the main use of greywater re-use?

• Water for gardens and flushing in toilets

• Drinking water

• Cooking water

• Feeding an outside tap and other non-potable uses

What does BS 1710 suggest for the pipework identification on rainwater or greywater systems?

• Red adhesive tape

• Yellow adhesive tape

• Blue adhesive tape

• Green adhesive tape with a black stripe