One credit - Leak detection system
1
A leak detection system which is capable of detecting a major water leak on the mains water supply within the building and between the building and the utilities' water meter is installed. The leak detection system must be:
1.a
A permanent automated water leak detection system that alerts the building occupants to the leak OR an inbuilt automated diagnostic procedure for detecting leaks
1.b
Activated when the flow of water passing through the water meter or data logger is at a flow rate above a preset maximum for a preset period of time
1.c
Able to identify different flow and therefore leakage rates, e.g. continuous, high or low level, over set time periods
1.d
Programmable to suit the owner's or occupiers' water consumption criteria
1.e
Where applicable, designed to avoid false alarms caused by normal operation of large water-consuming plant such as chillers.
One credit - Flow control devices
2
Flow control devices that regulate the supply of water to each WC area or facility according to demand are installed (and therefore minimise water leaks and wastage from sanitary fittings).
One credit - Leak isolation
3
Isolation valves are located in an accessible place that allows hot and cold water to be isolated by hand separately (switched on or off) for the following supplies:
3.a
Incoming supply to the dwelling
3.b
Taps
3.c
Showers
3.d
Heating or hot water systems
3.e
Appliances (e.g. dishwasher, washing machine etc.).