WorksheetsMTL2 Cold Water Learner Outcome 9
Total questions: 6
Worksheet time: 3mins
What is one method to reduce the time a cold water system is isolated?
Turn off the water supply early in the process
Make the final connection the first operation
Complete as much preparation as possible before isolation
Drain the system before informing the customer
What should you tell the customer before decommissioning work begins?
The exact time the water will be restored
Which parts of the system you will be working on
That they cannot use any water for 24 hours
That the system will be permanently removed
What is the first step in temporarily decommissioning a cold water system?
Drain the system
Inform the customer and give an estimated isolation time
Turn off all appliances
Place a warning notice
What does permanent decommissioning involve?
Isolating and draining the system temporarily
Removing all appliances and pipework completely
Installing a new isolation valve
Adding a warning notice only
What notice should be placed during temporary isolation?
“System under maintenance – do not use taps”
“Supply turned off – do not turn back on”
“Permanent decommissioning in progress”
“Water pressure low – use sparingly”
What is the main reason for keeping the customer informed during isolation?
To comply with Water Regulations
To allow them to plan essential activities like bathing and cooking
To prevent damage to appliances
To speed up the repair process
