Plumbers' technical notes

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Technical notes on plumbing issues are issued to assist licensed plumbers to comply with the Plumbers Licensing and Plumbing Standards Regulations 2000 (the Regulations) applicable to water supply, sanitary and drainage plumbing work in Western Australia.

Each technical note is to be read in conjunction with Part 6 of the Regulations that currently adopt the Plumbing and Drainage Standard AS/NZS 3500:2003 (the Standards) but are modified in certain matters to suit the State's building approach and other local conditions.

Current technical notes

Cold water services

Pressure control valves (February 2016)
Support and fixing of pipework (August 2015)
Flexible spray hoses (March 2015)
Water using appliances (July 2014)
Braided flexible hoses (January 2012, v2 issued August 2013)
Pipe sizing and commissioning (May 2007)

Heated water services

Water heaters and water tanks in roof spaces (September 2016) 
Flow and return lines from solar water heaters (April 2015)
Water heater installations (November 2012, v3 issued May 2018)
Plastic pipes to solar water heaters (December 2012)
Heated water piping (May 2012)

Sanitary plumbing

Air admittance valves (AAVs) (March 2009; v3 issued October 2017)
Connection of condensate waste to sanitary plumbing and drainage (December 2014, v2 issued October 2016)
Pressure attenuators (June 2015)
Trade waste applications (April 2015, v2 issued August 2018)
Above-ground pipework using drainage principles (November 2014)

Drainage plumbing

Multi-unit developments (October 2008, v2 issued August 2017)
Overflow gullies and reflux valves (June 2013, v2 issued August 2017)
Boundary traps (July 2011, v2 issued March 2017)
Inspection shafts and gully risers (September 2015)
Drainage audit requirements (July 2011, v2 issued August 2013)
Inspection openings for drainage plumbing (June 2007)

Miscellaneous technical notes

Water services providers conditions of connection; reticulation cut-ins; solvent welded traps; bin wash areas (July 2016)
Unintentionally heated cold water; floor wastes; wall insulation; plumbing in bush fire prone areas (June 2016)
The WaterMark Certification Scheme (August 2013, v2 issued May 2018)
Reticulation cut-ins and backflow prevention; 40mm traps; vacuum sewers; boundary traps (June 2009)

Specific topics

Access bathrooms (June 2017, v2 issued August 2017)
Pumping apparatus and venting (June 2017)
Water efficiency labelling and standards (April 2016)
Services to survey strata lots (March 2016)
Evaporative airconditioners, waste water drains and water supply (March 2012)

Each technical note is distributed to all licensed plumbers with a current email address.

Any questions on the content of the technical note series can be directed to:

Plumbers Licensing Board's Technical Advice Line
1300 360 897

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