All piping of the PPS must be inspected by the District’s Cross-Connection Control Coordinator during rough plumbing and at the finish.

If a Reduced Pressure or Double Check backflow assembly (Option 1 or 2) is selected, manufacturer cut sheets of the proposed backflow assembly shall be submitted to the District for approval. If Passive Purge (Option 3) is selected, building plans showing the passive purge system shall be submitted for review and approval.

Have more questions about pressure limiting valves or pressure reducing valves? Get in touch by filling out a contact form or give us a call on 0420 882 629.

Helix-Approved TestersWe encourage you to sign up during this introductory phase to learn the new system prior to the start date. Please note, you will need to provide your testing certification and test kit information to enroll in the new platform.

We will send an annual reminder notice to customers who are required to have a backflow assembly 30 days prior to the testing due date. It is the customer's responsibility to complete the testing.

RPZbackflow

For PPS, no annual testing is required after the final inspection by the District's Cross-Connection Control Coordinator. For RP and DC assemblies, annual maintenance, testing, and certification are required and shall be done by a District-approved certified backflow assembly tester at the account holder or owner's expense. Copies of maintenance, repair, and certification data must be mailed or emailed to the District's Cross-Connection Control Coordinator.

How to EnrollBackflow prevention assembly testers must be industry certified and approved by Helix Water District before testing within our service area. Approved testers are held to the highest standards of ethics and professionalism and Helix maintains the right to remove testers at its own discretion pursuant to Helix Water District Policies and Procedures, Section 5.3-3(D).

RP assemblies shall be, at a minimum, the same size as the water meter size and in no case smaller than 3/4-inch. RP assemblies shall be located as close as practical to the meter box.

Helix Water District is launching a new backflow platform which will require testers to submit backflow test reports online only.

Manufacturer cut sheets of the proposed RP and/or RPDA backflow assemblies shall be submitted to the District for approval. Only assemblies tested and approved by the University of Southern California Foundation for Cross-Connection Control Hydraulic Research shall be accepted. View List of Approved Backflow Prevention Assemblies.

PLV’s & PRV’s are a bit like an insurance policy for your pipes, flexi hoses, fixtures and appliances such as washing machines and dishwashers. As their names state, they reduce or Limit and control the water pressure from the water main going into your property’s pipes which reduces the pressure on your pipes, fixtures, fittings an appliances. These work as a bit of an insurance policy as they prevent water pressure exceeding limits that our plumbing pipes can handle before it hits fixtures, fittings and appliances that are only built to withstand a certain amount of pressure.

If your property does not have a pressure limiting valve and a fixture or fitting becomes faulty due to water pressure, your appliance may not be able to be fixed or replaced under warranty.

Reduced Pressure (RP) and Double Check (DC) assemblies shall be installed in accordance with California State Plumbing Code or the local governing authority. Additionally, RP assemblies shall be installed per drawing WR-01 of the Water Agencies’ Standards. View Water Agencies Standards.

Backflow prevention assemblies must be tested on an annual basis to comply with the State of California Code of Regulations, Title 17, and Helix Water District Policies and Procedures, Section 5.3.

Backflows

Testers Applying for Helix ApprovalTo apply for approval, please enroll in our new backflow platform. The platform will request and review your testing certification and test kit information before allowing you to enroll.

Residential dwellings mandated by the local fire marshal to have residential fire sprinkler systems are required to install a District-approved backflow prevention assembly (BPA) or passive purge system for system protection. There are three installation options for backflow prevention in residential dwellings.

An approved, aboveground Reduced Pressure Detector Assembly (RPDA) backflow prevention assembly is required on all fire service laterals.

Only Reduced Pressure or Double Check assemblies tested and approved by the University of Southern California Foundation for Cross-Connection Control Hydraulic Research shall be accepted. View List of Approved Backflow Prevention Assemblies.

BackpressureWhen a customer's water pressure exceeds Helix's water pressure, contaminants can flow into Helix's water distribution system. A well pump or boiler can cause back pressure.

Pressure Reducing Valve

For a fire service installation, the property owner(s) must complete and record a Fire Service Agreement and submit it with the legal description of the property.

Some people are hesitant to put them on as they don’t want to have reduced water pressure in their homes, but these valves are more than sufficient in producing enough pressure for your home.

RP and DC assemblies shall be, at a minimum, the same size as the water meter size and in no case smaller than 3/4-inch. RP assemblies shall be located as close as practical to the meter box. DC assemblies shall be installed just after the point of connection (POC) feeding the fire service.RP and DC assemblies shall be tested by any company on the District’s Approved Testers List within 30 days of installation. The certification test report form shall be mailed or emailed to the District’s Cross-Connection Control Coordinator. RP and DC assemblies must be tested prior to water service activation.

An approved, aboveground, Reduced Pressure (RP) backflow prevention assembly is required for commercial, industrial, irrigation, and multiple dwelling water services.

Reduced Pressure (RP) assemblies shall be installed in accordance with California State Plumbing Code or the local governing authority and per drawing WR-01 of the Water Agencies' Standards. View Water Agencies' Standards.

Further information is available in our Policies and Procedures Manual (PDF), Section 5.3 Cross Connection Control and Section 2.7 Fire Service Lateral. If you have questions, please contact Cross-Connection Control.

DCDABackflow

BacksiphonageA sudden reduction in Helix's water pressure due to a water main break or vehicle running into a fire hydrant can create suction that draws potential contaminants into Helix's water distribution system

We have found recently that a lot of homes in and around the Bonogin and Mudgeeraba area have been having issues with burst pipes and or water hammer, and it has not been their first experience with a leak or two. Upon investigation a lot of these properties have not had a Pressure limiting valve or Pressure reducing valve and this has meant their pipes, fixtures and or fittings have not been able to withstand the amount of pressure.

Installation of an approved reduced pressure detector assembly (RPDA) backflow assembly shall be completed prior to activation of service by Helix Water District:

Annual maintenance, testing, and certification are required for RP and RPDA assemblies and shall be done by a District-approved certified backflow assembly tester at the account holder or owner's expense. Copies of maintenance, repair, and certification data shall be mailed or emailed to the District's Cross-Connection Control Coordinator.

The water meter will not be activated until the PPS has been completed or temporary backflow meter protection is in place.

What is the difference between a Pressure Limiting Valve (PLV) and a Pressure Reducing Valve (PRV)? A PLV is only able to reduce the pressure to a set pressure, usually 350Kpa, 500Kpa or 600 Kpa, where as a PRV can be set to a pressure usually raging from 150Kpa to 600Kpa. So the difference is a PLV has no or a set adjustment in the pressure however the PRV does.

Backflow is the reversal flow of water, liquids, mixtures or substances from a customer's property into Helix's water distribution system. This can happen when there is a reversal in water pressure and a cross connection, a connection between the public water supply and a source of contamination, such as a garden hose in a swimming pool or an irrigation, fire sprinkler, graywater or rainwater harvesting system. Two conditions can cause a reversal in water pressure:

Cross Connection Control CoordinatorPhone: 619-667-6224Fax: 619-599-8058EmailHoursMonday through Friday7:30 am to 3:30 pm