Backflow Prevention Valves and Devices

Double Check Valves 65 250mm 470x325 - Backflow Prevention

LA Hughes provides backflow prevention valve installation and testing throughout the greater Auckland area.  We can also visit your property to test for problems relating to backflow, and recommend and install a suitable backflow protection device for your situation.

In compliance with the Building Code, we are authorised to carry out and provide annual backflow certification.

Backflow Prevention Valve Installation

Backflow prevention devices prevent the contamination of water supply by pollutants flowing into the water supply from commercial and residential properties. For many businesses and premises, these devices are required in order to meet Building Code Compliance.

The team at LA Hughes are qualified in the proper installation of backflow prevention devices.

We recommend and install:

  • Aqualine Reduced Pressure Zone Valves (RPZ valves),
  • Aqualine Double Check Valves,
  • Watts Backflow Prevention Products,
  • Hydraflow Backflow Preventers, and
  • Apollo Valves.

How to Fix Water Backflow Issues

Backflow is the contamination of fresh water supplies caused by pollutants (e.g. anything from sewage to commercial waste) being drawn back up from a water outlet and into the water supply system.

To prevent backflow in a water supply system where this may be an issue, a backflow prevention device should be installed. While larger businesses are often aware of their need for compliance, some smaller businesses, e.g. commercial kitchens and hair salons, may not be.

LA Hughes is fully qualified to legally carry out all of your backflow requirements from the installation to testing, maintenance and issuing of certification. Contact us to find out your water retention and backflow obligations under the current Building Code.

Backflow Prevention and Building Code Compliance

In order to meet Section 12A of the Building Code, each backflow prevention device must be tested yearly by an Independently Qualified Person (IQP). This testing must be accompanied by a Backflow Prevention Certificate of Compliance. The yearly Backflow Prevention Certificate of Compliance must be submitted to Watercare.

LA Hughes is an IQP; that is, we are qualified to inspect, test and certify your backflow protection device.

Backflow Valve Annual Testing and Certification

Backflow prevention device testing is both a compliance and health issue to ensure the drinking water supply is protected from backflow and contamination.  A properly performing backflow device also ensures no water pressure problems inside your home or business.

We will visit your home or business annually, test your backflow device, complete any adjustments or repairs if necessary, and issue a Backflow Certificate of Compliance.

Contact us to install or service your commercial or residential backflow prevention device; or for your yearly Backflow Prevention Valve Compliance Certificate

Backflow Prevention Valve & Device Maintenance and Repair

The unexpected failure of a backflow prevention device can have terrible consequences on the mains water supply and can result in prosecution from the local council – backflow prevention valve testing is essential.

The LA Hughes team provides regular testing of your backflow prevention device ensuring it is operating at peak efficiency, and will repair or replace if required.

More About Backflow

Water is delivered into all properties (commercial and residential) under mains pressure.  If that mains pressure fails, liquid from a contaminated source can be drawn back into the water supply.  This could create a serious risk to public health.

The mains pressure could fail for a variety of reasons such as:

  • Fire services using the main,
  • Broken or damaged water main,
  • Heavy water usage downstream in the main causing supply pressure reduction upstream.

The Auckland City Council’s backflow prevention regulations are quite specific; “Every [property] owner must prevent backflow either by providing an adequate air gap or by using a backflow prevention device.”

Because backflow can cause serious health problems, backflow prevention devices must be tested yearly by a qualified plumber.  The home or business owner is responsible for engaging a plumber to perform maintenance and testing of the backflow prevention devices installed on their property(s).

Our backflow installation and repair services are used by:

  • Residential homes
  • Apartments & apartment buildings
  • Rest homes and retirement villages
  • Hotels, motels, and camp sites
  • Universities
  • Schools & kindergartens
  • Bars
  • Restaurants and cafés
  • Hospitals
  • Medical centres
  • Dental practices
  • Veterinary practices
  • Churches
  • Banks
  • Shopping Malls
  • Food courts
  • Supermarkets
  • Food courts
  • Theatres
  • Factories and commercial premises
  • Sewerage pump stations