Hot Water Systems Decommissioning Quiz L3P2U6,2.1

What is the purpose of permanent decommissioning of a hot water system?

• To completely remove the system

• To temporarily shut down the system

• To extend the system

• To repair the system

What should be done to avoid water stagnation during permanent decommissioning?

• Drain the system to a suitable location

• Remove all pipework and fittings

• Cap off the internal stop tap

• Turn off the cold water supply

When is temporary decommissioning of a hot water system conducted?

• When the system is being permanently removed

• When the system is being extended

• When the system is being serviced or repaired

• When the system is no longer required

What should be done before the decommissioning process starts?

• Apply warning notices and signs

• Isolate the fuel/electricity supply

• Notify the relevant person

• Isolate the water supply

What should be done if there are other trades on site that require water to work?

• Ignore their water requirements

• Ask them to use water from a different source

• Continue with the decommissioning process as planned

• Notify them in advance to make alternative water arrangements

What should be done to isolate the hot water supply during temporary decommissioning?

• Isolate the cold water supply

• Isolate the electricity supply

• Isolate the whole property

• Isolate the section of pipework being worked on

What should be done with the system water during temporary decommissioning?

• Dispose of it in the top water drain

• Dispose of it on the road

• Dispose of it on the property pathway

• Dispose of it down the foul water drain

What should be done if there is no drain point for the system water?

• Dispose of the water in the hot water storage cylinder

• Dispose of the water in the cold water feed cistern

• Dispose of the water in the lowest draw-off point

• Install a drain point for future use

What should be done with the pipework sections left drained for a period of time?

• Leave them open for ventilation

• Cap them off to prevent dirt and vermin/insects ingress

• Remove them completely from the system

• Replace them with new pipework sections