Water Tank Pumps NZ – Reliable Solutions for Efficient Water Flow
Plug N' Play Pump
The RainSaver Plug N’ Play Pump supplies clean rainwater from a rainwater tank via an automatic pressure system to pump toilets, laundry, and garden taps in a household.

The RainSaver Plug N Play Pump is connected to both water tank and mains water supply. A float switch is included on the pump which prevents the pump from running dry and allow automatic switch over to mains, should the rainwater tank level be too low and/or there is a power shortage.
Rainsaver from Watersmart makes it simple by combining water tanks and pumps into one efficient, easy-to-manage system. Whether you’re washing the car, watering the garden, or tackling everyday chores, Rainsaver helps you make the most of New Zealand’s rainfall.
Because Rainsaver brings water pumps and tanks together in one setup, you don’t have to juggle separate components. It’s designed so that the pump for your water tank delivers a consistent flow, reducing the need to rely on mains water or stress about water restrictions. You’ll also have peace of mind knowing you’re using a system built for New Zealand’s tough conditions.
- Automatically switches between tank and mains water supply
- Pump comes with a pump cover for further protection from the elements
- Pump features a rainwater auto changeover device and a low-level float to prevent the pump from running dry
- In-built testable backflow prevention device to prevent contamination to the potable water network
- Corrosion-resistant pump body diffuser to ensure pump durability
- Has the ability to service up to 5 taps for small to medium homes
- Automatic electronic pump control fitted and wired with the plugin and play leads
- No licensed electrician required during installation
- Includes fully electronic pump controller for automatic pump starting, stopping and restarting after power loss and water loss
- Run dry protection to prevent pump damage
- Automatic electronic control has an in-built check valve to prevent water back-flow through the pump
- 2.2 bar pump cut in for greater versatility
- Corrosion-resistant pump body, diffuser and impeller to ensure the pump durability
- High-quality mechanical shaft steak and high-quality bearings
- 240v single phase TEFC motor with in-built auto reset thermal overload to prevent the pump from overheating
- Two-year warranty
Specifically for Auckland
- Automatic switch over to mains in case of low water level or power loss
- Testable back-flow preventer with gate valves
- Plug ‘n play set up
- Protective cover protects from the elements
- Also available for other areas without testable back-flow and gate valves
For water tanks with pump solutions, Rainsaver offers a robust approach that’s easy to install and maintain. It’s versatile enough to cater to different property sizes, letting you adjust your water storage as needed. In other words, it’s not just about having a tank water pump; it’s about having a reliable, sustainable supply right at your fingertips.
When choosing a water tank and pump system like Rainsaver, you’re taking a step towards long-term water security—something all Kiwis can appreciate. When you’re ready to make a positive change in how you manage water, Rainsaver is here to help you capture, store, and use rainwater more effectively than ever before.
Colour Options
Beige
Slate Grey
Why Choose Our Plug N' Play Pump
Automatic Switch Over
This pump automatically switches between tank and mains water supply.
Backflow Prevention
This pump features a rainsaver auto changeover device and a low level float to prevent the pump from running dry.
Weather Proof
A pump cover is included with purchase for further protection from the elements.
Durable
The pump has a corrosion-resistant pump body diffuser and impeller to ensure pump durability.