GUIDE NOTE: Refer to NATSPEC 0823 Cold & Heated Water for Insulation Materials, Fire Hazard Proprieties, acoustic treatment of piping & Mixing Valves
The Water services within a school facility include the water supply and associated services. The designers must also refer to the drainage, and gas section of the design guide.
Water services and the selection of fittings, must be undertaken based on a “Whole of Life” (WOL) perspective to provide:
Specifically Water services must:
The design of the Water services should consider the following:
Refer to DG / WHOLE OF LIFE
WATER CONSERVATION STRATEGIES must be implemented on school sites , including:
Refer to DG / STORMWATER
GUIDE NOTE: Refer to SG811 Sanitary Fixtures for the latest product selection & WELS rating.
All fixtures and fittings must be at least the average WELS star rating by product type. Where WELS rating is not available, use the alternative WaterMark rating scheme.
All new water-using appliances must be at least 0.5 stars above the average Water Efficiency Labelling and Standards (WELS) star rating by product type, except toilets and urinals, which must be purchased at the average WELS star rating.
Appliances and equipment purchased in the following categories with star ratings under the WELS scheme will be at least:
Where ground water is available for use for irrigation purposes in drought affected locations, enquiries must be undertaken with the Department of Planning, Industry and Environment to determine the suitability of a ground water system.
GUIDE NOTE: Identify requirements for the provision of sub-meters in addition to the main water meter in conjunction with the BMS strategy and areas identified as “major water use on the site”.
In addition to the main water meter for the site provide sub meters for the following:
GUIDE NOTE: Refer to NATSPEC 0823 Cold & Heated Water for Backflow Prevention.
Provide backflow protection to the water services in accordance with AS 3500.1 and regulatory authority requirements. Ensure devices are securely enclosed.
Ensure that there is enough pressure at all outlets by getting minimum pressures from the authority.
GUIDE NOTE: Refer to NATSPEC 0823 Cold & Heated Water for Provision for Expansion, Finishes & Protection from Sunlight
GUIDE NOTE: Refer to NATSPEC 0823 Cold & Heated Water for Warm Water Systems.
Refer to DG / WATER / WARM WATER MIXING VALVE
GUIDE NOTE: Refer to NATSPEC 0813 Water Heaters for Electrical, Gas & Solar storage water heaters requirements
GUIDE NOTE: Refer to NATSPEC 0813 Water Heaters for Installation.
No of Showers Delivery 50oC in 10 min Recovery L/Hr
2 100 L 75
3-4 180 180
5-7 280 300
8-10 400 500
11-13 550 670
14-20 750 1000
21-30 1000 1200
GUIDE NOTE: Refer to NATSPEC 0823 Cold & Heated Water for Thermostatic mixing valves requirements.
Thermostatic Mixing Valves:
WC cistern : 3/4.5 Litre dual flush cistern to be used
Wash Basin : 6 Litres per minute
Shower : 7-9 Litres per minute
Bath : 18 Litres per minute
Sinks : 12 Litres per minute
Wash tub : 9 Litres per minute
Urinal cistern : - Use Manual Type
Cleaners' sink : 12 Litres per minute
Hose cock : 18 Litres per minute
Refer to NATSPEC 0812 Tapware & SG812 Tapware for selection & installation.
GUIDE NOTE: Refer to NATSPEC 0811 Sanitary Fixtures for Installation
Item |
Pre School |
Primary |
Secondary & Staff |
Comment |
Hand Basin\Trough |
550 |
650 |
700 |
|
Cistern Pull |
|
1300 |
1600 |
|
Water Closet |
355 |
400 |
400 |
|
Shower Control |
|
1000 |
1000 |
|
Drink Fountain (not accessible) |
600 |
700 |
900 |
|
Hose Tap External |
450 |
450 |
450 |
|
Cleaners Sink |
500 |
500 |
500 |
|
Bucket Sink |
|
|
700 |
|
Fire Extinguisher |
|
1200 |
1200 |
|
Fire Blankets |
|
1500 |
1500 |
|
Coat Hook top row |
|
1200 |
1700 |
Staggered Hooks |
Coat Hook bottom row |
|
900 |
1200 |
|
Soap dispenser |
|
1000 |
1000 |
From bottom of dispenser |
Soap holder |
|
1200 |
1200 |
|
Toilet paper holder |
|
700 |
800 |
From bottom of holder |
Towel rail |
|
900 |
1000 |
Nominal |
Paper towel dispenser |
|
1200 |
1200 |
From bottom of dispenser |
Fittings and fixtures in accessible and ambulant toilets |
Comply with AS1428.1 |
Item | Pre School | Primary | Secondary & Staff | ||
---|---|---|---|---|---|
|
|||||
Hand Basim\ Trough | 550 | 650 | 700 | ||
Cistern Pull | 1300 | 1600 | |||
Water Closet | 365 | 400 | 400 | ||
Shower Control | 1000 | 1000 | |||
Drink Fountain (not accessible) | 600 | 700 | 900 | ||
Hose Tap External | 450 | 450 | 450 | ||
Cleaners Sink | 500 | 500 | 500 | ||
Bucket Sink | 700 | ||||
Fittings and fixtures in accessible and ambulant toilets | Comply with AS1428.1 |
GUIDE NOTE: Refer to NATSPEC 0816 Tanks for general requirements.
As per DoE policy roof water harvesting and tank storage must be included in new schools and to encourage it where practical in existing schools, to reduce the demand on drinking water supplies.
The rainwater tank water must be connected to irrigation systems for adjacent landscape/gardens with the major preference being for gravity fed supply to minimise ongoing maintenance.
The rainwater tanks must be connected to toilets for toilet flushing. If this is not feasible, approval must be granted by SINSW
To manage the risk of contamination, tanks for drinking and non-drinking water use are to be designed and installed in accordance with HB 230 Rainwater Tank Design and Installation Handbook, Managing Urban Stormwater Harvesting and Reuse AS3500.
GUIDE NOTE: Refer to NATSPEC 0816 Tanks for general requirements.
GUIDE NOTE: Refer to NATSPEC 0816 Tanks for authorized products & accessibility for inspection and cleaning
In addition to the above, tanks for drinking water will require the following:
For Non- Drinking Water
For Drinking Water
Water tanks for drinking water purposes to be only used where a mains water supply is not available. Where water storage tanks for drinking purposes are provided:
Refer to the local council for tank size at which a Development Application or Consent is required and any other water supply requirements.
Some of the requirements may include: