cold water storage

Which of the following is a basic requirement for cold water storage cisterns?

• Be fitted with an effective inlet control to maintain the correct water level

• Be left open to allow air circulation

• Be painted with bright colors for visibility

• Be installed without any valves

What is the purpose of covering cold water storage cisterns with a rigid, close-fitting lid?

• To exclude light and insects

• To make the cistern airtight

• To increase water temperature

• To allow easy evaporation

Which feature helps prevent freezing and warming in cold water storage cisterns?

• Insulation

• Painting

• Ventilation

• Increasing water flow

A maintenance worker needs to clean a cold water storage cistern. Which requirement ensures this is possible?

• The cistern is accessible for maintenance and cleaning

• The cistern is painted blue

• The cistern is installed underground

• The cistern is fitted with a warning light

Explain why a screened vent is important in the design of a cold water storage cistern.

• It prevents contaminants from entering the cistern while allowing air flow.

• It increases the water temperature.

• It reduces the water flow rate.

• It acts as a water filter.

If a cold water storage cistern does not have a secure fitting lid, what potential problems could arise?

• Contamination of stored water and increased risk of debris entering the cistern

• Increased water pressure

• Reduced water temperature

• Enhanced water filtration

A homeowner is renovating an older property and discovers a galvanised steel cistern. What should they do according to current standards?

• Replace it with a WRAS approved cistern

• Keep it as it is

• Paint it for better insulation

• Cover it with plastic

If a plumber wants to ensure the cistern they install can supply potable water, what should they check?

• WRAS approval

• Price of the cistern

• Colour of the cistern

• Manufacturer's logo

What is the minimum cistern capacity for hot and cold water in a small house?

• 230 litres

• 100 litres

• 150 litres

• 100 litres per bedroom

For a large house, what is the recommended cistern capacity per bedroom?

• 150 litres

• 230 litres

• 100 litres

• 100 litres per bedroom