The water supply system is designed to ensure that water flows under pressure. There is a risk to the public if there is a cross connection between your water supply and a contaminated source. If there is a pressure drop in the water main, a vacuum could be created in the water supply system. Under certain conditions, this creates a siphoning effect and draws liquid from a contaminated source back into the drinking water supply.
We help you to minimise and eliminate risks to your potable drinking water supply through our services.
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As you can see traveling throughout NZ is not a concern. If you need help, we will come to you.
When you’re not sure about the best way forward, and you need to protect your potable water supply network (outside the property boundary) or Internal potable water system ( inside the property boundary) we can offer help when you need it the most. We can help you develop your cross connection control program. This may include in-depth property survey for the protection of the internal potable water systems, including advice on devices required.
Site survey work allows you to make informed decisions on the degree of hazard within a specific property from the boundary to the source our survey enables you to make the correct decisions for backflow prevention devices to be installed on the boundary, or internally where they are needed the most. Unsure, give us a call.
For the past 3 years Jon has been the training facilitator for WSP Opus EWT, specific to the Backflow Prevention Unit Standards 23847, 23848 and 2117. This is a three day course that covers the theory and practical requirements for Installation, Testing and Servicing of backflow prevention devices. Opus run courses in Auckland, Wellington, Christchurch and Hamilton. Alternatively, if you have enough course participants, Opus will run a specific course in your area.
If you are just looking for a refresher course then this is generally a one day course. Please contact Opus for a list of course dates and areas. or follow this useful link
Part of undertaking a complete cross connection control, backflow prevention program is having an independent audit. We can audit your backflow program to ensure you are getting the best protection for your water supply network. This will require an independent audit of your testing program to ensure the people you are relying on to undertake the testing and maintenance of the boundary backflow prevention devices are meeting specific standards. This includes but is not limited to, health and safety, testing procedures, public consultation, suitability of practice and timeliness.
We manufacture Backflow Prevention units, pre-assembled to your requirements. If you have a specific backflow prevention device or water meter unit, we can assemble to your individual requirements.
If you require a new water connection and live in the Rotorua area we can install your new water connection sized from , 20mm and 25mm. All work is undertaken while mains are live. We can install water meters and backflow prevention devices at this time when required.
Backflow devices are required to be tested annually. This is a service we offer, so if its a boundary backflow prevention device, or one that is installed internally and part of the BWOF, we can help you become compliant.