12
PLUMBING CONNECTION
SUMMER 2015
INDUSTRY NEWS
CROSS CONNECTION’S KEEP HAPPENING
The photo above is taken from a residential home in a
large estate supplied with both drinking and non-drinking
water. The situation thankfully was prior to the home
being occupied. If it had been occupied all the drinking
water outlets in the home would have been supplied with
non-drinking water and the toilets and irrigation on the
property served with drinking water.
The plumber should have conducted a cross connection
separation test as is required in AS/NZS 3500.1 Clause
9.4 and AS/NZS 3500.5 Section 2 Clause 2.24.
The Plumbing Connection can report these incidences
are not isolated and as such plumbers need to be aware of
their responsibilities when installing non-drinking water
services. A number of plumbers have been fined when a
cross connection has been installed.
The National Construction Code Volume 3 (Plumbing
Code of Australia) sets out the performance requirements
in Part B3 to ensure that there are no cross connections
with a drinking water supply and as such is not
contaminated. The performance requirements also
include the limitation to the specific use of the non-
drinking water, the connection and identification of pipe
outlets, fittings and storage tanks.
The installation requirements to meet the performance
requirements in accordance with the PCA are the deemed
to satisfy provisions and are set out in Part B3.2 of the
PCA and include the design, construction, installation,
replacement, repair, alteration and maintenance of a non-
drinking water service must be in accordance with –
AS/NZS 3500.1 or for Class 1a or Class 10 buildings only
Section 2 of AS/NZS 3500.5.
IMAGE 1:
Before: cross connection.
IMAGE 2:
After: no
cross-connection.
1
2
DESIGN A DUNNY COMPETITION
The Kenilworth Designer Dunny
Competition organised by the
Kenilworth community in partnership
with Sunshine Coast Council is
expected to attract submissions from
artists, architects, designers and
students from around the country.
Launched at Isaac Moore Park
on October 31, the competition
invites creative minds from across
Australia to design a public toilet
structure that celebrates the
Kenilworth community and
delivers an iconic and innovative
public artwork, with $10,000 going to the
winning design.
Division 10 Councillor Greg Rogerson, who has
championed the project from its inception, said that the
Sunshine Coast has a wealth of talented businesses and
individuals working in the creative sector. The Council is
committed to supporting and growing this sector even
further through national art competitions such as the
Kenilworth Designer Dunny Competition.
Cr Rogerson explains that participants in the
competition will have to resolve unique design challenges
including planning a structure that sits at least four
metres above the existing ground level to avoid problems
from seasonal flooding.
The ‘designer dunny’, according to Cr Rogerson, will not
only serve its functional purpose of providing amenities
in a much used and loved park, but will also be a major
talking point and drawcard for the Kenilworth area.
Those interested in participating in the Kenilworth
Designer Dunny Competition can access the Sunshine
Coast Council’s website (www.sunshinecoast.qld.gov.
au) for a complete design brief, a full list of technical
challenges involved in the project, and the submission
process.
The Kenilworth Designer Dunny Competition is open
to everyone from qualified architects, right through to
students, individuals and teams.
All entries will be evaluated by a judging panel
featuring well-respected Sunshine Coast architect John
Mainwaring; Cr Rogerson; Queensland Art Gallery Curator
Lynne Seears; world renowned sculptor Greg Johns;
and former Kenilworth Arts Council President Shirley
Moreland.
The competition closes on January 29, 2016, with the
winner announced in March 2016.