Flow meter verification isn't optional in Canterbury, it's a consent condition. NZ Flow Group are Canterbury's verification specialists: IANZ-calibrated equipment, same-day certificates, submitted directly to your territorial authority.
Under the Resource Management (Measurement and Reporting of Water Takes) Regulations 2010, ground and surface water users in New Zealand are required to accurately measure, record, and report their water takes. In Canterbury, ECan enforces this through resource consent conditions, and flow meter accuracy is central to those conditions.
Your consent requires your meter to operate within a tolerance of ±5% when compared to a verification flow meter. If your meter has drifted outside that tolerance, which happens gradually over time, particularly with mechanical meters, your recorded data may be inaccurate, your reporting may be non-compliant, and your consent could be at risk.
Regular verification keeps you on the right side of your consent, gives you confidence in your data, and demonstrates to ECan and your council that you're taking your water management obligations seriously. NZ Flow Group handle the compliance paperwork so you don't have to.
NZ Flow Group tracks verification due dates for our customers, we'll contact you when you're coming up for your next one.
The leading portable ultrasonic clamp-on meter, required by ECan for all Canterbury verifications. Our units are sent away for IANZ-accredited calibration every year, compared against a certified flow rig under fixed conditions. When we verify your meter, we're comparing it against a calibrated instrument under known conditions, not just making an estimate.
We maintain a schedule of all consented meters we've worked with, and contact you in advance of your verification due date. Keeping on top of these schedules is your responsibility, we make it easy.
Book a verificationFor irrigation consent holders, we carry out on-site verification using the ECan-specified Ultrasonic Clamp-On method. We issue the certificate and can submit documentation directly to ECan on your behalf. We also track your due dates and contact you before you're overdue.
We carry out on-site physical verification of installed meters across water supply, reticulation, and wastewater networks, no need to remove meters from service. We also offer electronic verification for mag meters where interrupting flow isn't possible.
Trade waste discharge meters are typically required to be verified annually, not every five years. Many businesses overlook this until they receive a notice from council. NZ Flow Group provides annual trade waste verification for Canterbury businesses, including those discharging to Christchurch City Council's network.
Every verification follows a consistent, documented process, so your certificate stands up to scrutiny.
We bring our IANZ-calibrated portable ultrasonic meter to your site.
We clamp transducers onto your pipe alongside the installed meter and run the verification test.
We record the result, pass or fail to ±5% tolerance.
Full documentation issued on completion, accepted by ECan and Canterbury territorial authorities.
For water take consent holders, we can supply documentation directly to ECan as part of your compliance record.
A specialist service using brand-specific test equipment to check the health of your installed electromagnetic meter, without removing it from the line or requiring flow conditions.
We run a series of electronic tests against the meter's original factory data. The outcome is a pass or fail with an Electronic Verification Certificate, accepted in most cases by Canterbury authorities as proof of compliance.
Unit 8, 11 Penn Place, Upper Riccarton, Christchurch 8041
Book a verificationIt depends on your consent conditions. There is a common understanding that mag flow meters require re-verification every 5 years, ultrasonic (clamp-on type) meters every 3 years, and mechanical meters every 2 years. In practice, our experience has shown that for now, all meter types fall under a 5-yearly rotation, though this may change in the future. New meters are verified within six months of installation, and trade waste discharge meters are typically required to be verified annually. Contact us if you're unsure.
For irrigation consent holders, ECan specifies that an Ultrasonic Clamp-On type flow meter must be used for flow meter verifications in the Canterbury region. NZ Flow Group uses the IANZ-calibrated Flexim Fluxus F601 for this. For municipal and industrial customers, electronic verification is also available, using brand-specific test equipment to check the health of an installed mag meter without requiring flow conditions, producing an Electronic Verification Certificate accepted by most Canterbury territorial authorities.
An electronic verification uses brand-specific test equipment to check the health of an installed electromagnetic (mag) flow meter. A series of electronic tests are run and compared against the meter's original factory test results, producing a pass or fail outcome and an Electronic Verification Certificate. In most cases this is accepted by NZ councils as proof of accuracy. For municipal and industrial customers, an electronic verification can also be used as a compliance verification, providing a valid certificate for your consent records without requiring live flow conditions.
Most on-site verifications take between one and two hours depending on site conditions, access, and meter size. Electronic verifications can be faster. We'll give you a time estimate when you book.
We are Blue Tick accredited by Irrigation NZ, covering flow meter installation, verification, and data hosting. Our Flexim Fluxus F601 verification equipment is IANZ-calibrated annually against an accredited flow rig.
Yes. We issue full verification certificates on completion of every job, accepted by ECan and by local and district councils across Canterbury, including Christchurch City Council, as proof of meter accuracy for resource consent and trade waste consent compliance purposes.
Irrigation verification is carried out every five years, for all meter types, under the RMA Regulations 2010. Trade waste verification is required annually by most Canterbury territorial authorities. Both require IANZ-calibrated equipment and produce a compliance certificate.
Due for your 5-yearly verification? Coming up on your annual trade waste date? Not sure when you last had your meter checked? Contact us today.