Grundfos unveils smart groundwater controller in NZ
Grundfos has launched its CU 302 smart controller in New Zealand, extending remote monitoring and control options for residential groundwater pumping systems that utilise the company's 3-inch and 4-inch SQE submersible pumps.
The controller features built-in Bluetooth and Wi-Fi connectivity. Grundfos stated that users can access monitoring, control, and commissioning functions through its Grundfos GO, Grundfos Home, and Grundfos Connect platforms.
The company positioned the product launch against a wider shift towards measured and monitored household water use. It said more than 60% of domestic water customers in New Zealand have water meters.
Grundfos also pointed to the role of groundwater in national supply. It said groundwater provides drinking water to around 40% of the population.
Connected control
The CU 302 integrates with two dedicated mobile applications to streamline system management. Grundfos GO is designed for professional users, providing comprehensive tools for system setup, real-time monitoring, and access to detailed operational data.
In contrast, Grundfos Home is tailored for homeowners, offering remote notifications and performance insights to ensure peace of mind. According to the company, these digital interfaces allow for seamless interaction with the pumping system from any location.
Grundfos also described integration with Grundfos Connect, its web-based service for remote monitoring and control of pumps. The company said the service provides real-time information on equipment status and performance.
Grundfos said users can pair CU 302 with a Grundfos Connect subscription. It said this provides broader oversight of pumping systems and can reduce unnecessary service visits.
Pressure management
The controller operates with Grundfos SQE submersible pumps in residential groundwater installations. Grundfos said the system maintains constant water pressure by automatically adjusting pump speed as demand changes.
Grundfos said the approach differs from fixed on-off pressure systems. It said variable speed operation can allow use of a smaller pressure tank.
The company linked the product to household consumption patterns. It said the average household water use in New Zealand is about 237 litres per person per day. It said demand changes across a day can create pressure fluctuations that a constant-pressure setup aims to reduce.
Grundfos also said CU 302 shares the same dimensions as its predecessor. It said this makes replacement in existing setups simpler.
Local conditions
Grundfos said the product has relevance for rural and residential users facing variable rainfall, fluctuating water pressure and rising electricity costs. It said these conditions can place additional strain on private water systems.
It also framed the product within a shift towards data-driven water management in homes. Grundfos said connected systems provide real-time visibility into performance and system status.
Sam Ryder, Regional Managing Director Oceania, said: "The CU 302 is more than a controller - it's the next step in intelligent water management for residential systems. With built-in connectivity, homeowners and professionals can monitor their water systems from their phones, keep pressure consistent, and address issues before they become costly breakdowns. It transforms water management from reactive fixes to proactive, reliable, and energy-efficient control."
Grundfos said CU 302 forms part of its wider portfolio in pumps and water systems. The company said it expects connected controllers and remote monitoring to take a larger role in how residential water systems are managed in New Zealand.