Rain Harvesting Pumps
Shop rain harvesting pumps online with Installed Today for rainwater tanks, household rainwater supply, mains backup and automatic changeover systems. Rain harvesting pump systems are designed for homes that want to use stored rainwater for toilets, laundries, garden taps or selected household applications while still keeping mains water available when tank water is low.
Rain harvesting pumps are different from a basic rain water pump. A standard rainwater pump moves water from a tank to an outlet. A rain harvesting system usually includes a pump and changeover control, allowing the home to use rainwater where available and switch to mains water when required, depending on the system and plumbing setup.
Installed Today makes it easier to compare rain harvesting pump options online, including above-ground and submersible Davey RainBank systems. Choose supply only if you already have your own licensed installer arranged, or select supplied and installed options where available in eligible Brisbane and Gold Coast service areas.
Supply Only Rain Harvesting Pumps Across Australian Metro Areas
Supply-only rain harvesting pumps are ideal if you already have your own plumber, pump technician or licensed installer arranged. This option suits homeowners, builders, renovators, property managers and trade customers who need the pump system supplied without installation included.
The product price is for the rain harvesting pump system only. Installation, fittings, valves, pipework changes, electrical work, tank work, controller changes, trenching, base work, weather protection, access upgrades and compliance work are not included unless selected separately or shown as part of the chosen option.
Before ordering supply only, check that the system suits your rainwater tank, existing plumbing, mains backup requirements, number of outlets, pressure requirements, power supply, installation location and intended use.
Supplied and Installed Rain Harvesting Pumps in Brisbane and Gold Coast
Supplied and installed options may be available on selected rain harvesting pump systems in eligible Brisbane and Gold Coast service areas. This option is useful when you want the pump system and installation arranged together instead of buying the product separately.
Installation availability depends on the selected pump, property location, tank setup, existing pipework, electrical supply, valves, access, mains backup requirements and any extra work needed. Some sites may require additional fittings, plumbing changes, electrical work, tank connection changes, weather protection, base work or compliance upgrades.
For supply-only orders, your own licensed installer should confirm the rain harvesting pump system is suitable before installation.
What Is a Rain Harvesting Pump System?
A rain harvesting pump system helps a property use rainwater from a tank for selected fixtures, while also allowing mains water backup when tank water is unavailable. These systems are commonly used for toilets, laundries, garden taps and selected household applications depending on the plumbing design.
The pump draws water from the rainwater tank and supplies it to the connected outlets. The changeover control helps manage whether the system uses rainwater or mains water, depending on tank water availability and the system type.
This makes rain harvesting systems popular for homes with rainwater tanks that are plumbed into the house, rather than only being used for a single garden tap.
Rain Harvesting Pumps vs Rain Water Pumps
A rain water pump is generally used to move water from a rainwater tank to a tap, garden, irrigation system, shed or household fixture.
A rain harvesting pump system usually does more than simple pumping. It is designed for setups where rainwater and mains water need to work together. When tank water is available, the system can supply rainwater to connected outlets. When tank water is low, the system can allow mains water backup.
Choose a standard rain water pump if you mainly need tank water for gardens, outdoor taps, irrigation or simple tank-to-outlet supply.
Choose a rain harvesting pump system if your property is set up to use tank water for toilets, laundries or household fixtures and needs automatic mains backup.
Davey RainBank Rain Harvesting Systems
Davey RainBank systems are one of the most recognised rain harvesting solutions in Australia. They are designed to help homes use rainwater from a tank while maintaining mains water backup when required.
A Davey RainBank system may suit homes with rainwater tanks connected to toilets, laundries, garden taps or selected fixtures. They are commonly used in new builds, renovations, replacement jobs and properties where an older rain harvesting system has failed.
Davey RainBank systems are often compared because they provide a practical all-in-one style pathway for rainwater use and mains backup, depending on the model and installation setup.
Above-Ground Rain Harvesting Pumps
Above-ground rain harvesting pump systems are commonly installed near the rainwater tank, beside the home, near an external service area or in another suitable outdoor location. These systems are generally easier to access for servicing than submersible pump setups.
An above-ground Davey RainBank system may suit homes where there is enough space near the tank and the pump can be installed in a practical, protected and accessible position.
Above-ground systems may suit:
Homes with external rainwater tanks
Toilet and laundry rainwater supply
Garden tap rainwater use
Replacement of older above-ground pump systems
Properties needing accessible pump servicing
Rain harvesting setups with mains backup
The installation location should be checked for pipework access, power supply, weather exposure, noise, drainage, fittings and future servicing access.
Submersible Rain Harvesting Pumps
Submersible rain harvesting pump systems use a pump located inside the rainwater tank, with the controller or changeover equipment installed externally depending on the system. This can be useful where customers want a cleaner external look or where reducing external pump noise is a priority.
A submersible Davey RainBank system may suit selected rainwater harvesting setups where the tank and installation conditions allow it.
Submersible systems may suit:
Homes where the pump is installed inside the tank
Rainwater tanks with suitable access
Toilet and laundry rainwater supply
Garden tap rainwater use
Replacement of older submersible rain harvesting systems
Properties wanting less visible pump equipment
Submersible pump suitability depends on tank access, tank design, electrical requirements, controller location, pipework, service access and the way the system is plumbed.
Best Selling Rain Harvesting Pump Options
For above-ground rain harvesting systems, the Davey RainBank KRB2 is a popular option for homes wanting a practical rainwater and mains backup solution.
For submersible rain harvesting systems, the Davey RainBank KRBS2 is a popular option where the pump is installed inside the tank and the setup suits a submersible rainwater harvesting design.
The right choice depends on the property. Above-ground and submersible systems suit different tank setups, access conditions, servicing needs, pipework layouts and customer preferences.
What Can Rain Harvesting Pumps Supply?
Rain harvesting pumps are commonly used for selected household and outdoor applications. The exact fixtures supplied depend on how the property is plumbed.
Common uses include:
Toilets
Laundries
Garden taps
Outdoor taps
Selected household fixtures
Tank water backup setups
New build rainwater plumbing
Renovation rainwater systems
Replacement rain harvesting systems
Rain harvesting pumps are not automatically connected to every outlet in the home. The system only supplies the fixtures that are connected to the rainwater plumbing setup.
Rain Harvesting for Toilets and Laundry
Toilet and laundry supply is one of the most common reasons customers choose rain harvesting pump systems. These fixtures can often use rainwater where the property has the correct tank, plumbing and pump setup.
A rain harvesting system can help the home use stored rainwater when available, then rely on mains water backup when the tank is low. This can be useful for homes that want to make better use of their rainwater tank without manually switching water sources.
Before ordering, check whether the existing plumbing is set up for toilet and laundry rainwater supply. If the property is not already plumbed for rainwater use, additional plumbing work may be required.
Rain Harvesting for Garden Taps
Rain harvesting pump systems can also supply garden taps or outdoor taps where the plumbing is connected to the rainwater system.
For simple garden-only use, a standard rain water pump may be enough. For garden taps plus household fixtures with mains backup, a rain harvesting system may be more suitable.
The right setup depends on whether you want basic tank water pumping or a more complete rainwater and mains backup arrangement.
Replacing an Existing Rain Harvesting Pump
If your current rain harvesting pump system has failed, replacing it with a similar system can often be a practical option. This is especially common when replacing an older Davey RainBank or similar rainwater changeover system.
Before choosing a replacement, check:
Existing pump model
Tank type and tank location
Above-ground or submersible setup
Connected fixtures
Mains backup arrangement
Pipework layout
Power supply
Controller location
Access for servicing
Whether the old system performed well before it failed
If the old system worked well, a similar replacement may be suitable. If the old system struggled with pressure, flow, noise or reliability, a different pump setup may be worth comparing.
Choosing the Right Rain Harvesting Pump
Choosing the right rain harvesting pump depends on the tank, plumbing and how the property uses rainwater. The best option is not always the largest or most expensive system.
Before buying a rain harvesting pump online, consider:
Above-ground or submersible setup
Rainwater tank location
Tank access
Connected fixtures
Toilet and laundry supply
Garden tap use
Mains backup requirements
Pipework size
Pressure requirements
Flow requirements
Power supply
Pump noise location
Weather protection
Access for future servicing
Existing system model if replacing
A rain harvesting pump needs to match the property’s rainwater setup. If the system is not matched correctly, it may not deliver the expected pressure, flow or backup function.
Rain Harvesting Pump Installation Considerations
Rain harvesting pump systems need correct plumbing, electrical and tank connections to work properly. Installation is especially important because the system may involve both rainwater and mains water.
Important installation considerations include:
Tank location
Pump location
Pipework layout
Mains backup connection
Changeover controller position
Electrical supply
Valves and fittings
Backflow requirements where applicable
Weather protection
Noise location
Tank access
Pressure requirements
Flow requirements
Access for future servicing
Compliance requirements
For supply-only orders, your own licensed installer should confirm that the system suits your property before installation.
Rain Harvesting Pump Buying Guide
What is a rain harvesting pump?
A rain harvesting pump is part of a system that helps use rainwater from a tank for selected outlets while allowing mains water backup when tank water is low or unavailable.
What is the difference between rainwater pumping and rain harvesting?
Rainwater pumping usually means moving water from a tank to an outlet. Rain harvesting usually means using tank water through a pump and changeover system, often with mains water backup for connected fixtures.
What is Davey RainBank used for?
Davey RainBank systems are used for rainwater harvesting setups where a home uses tank water for selected fixtures and needs mains water backup when tank water is not available.
Should I choose above-ground or submersible rain harvesting?
Choose above-ground where the pump can be installed externally near the tank and easy access is preferred. Choose submersible where the tank and site suit a pump installed inside the tank. The right choice depends on tank type, access, pipework, noise, servicing and installation requirements.
Can a rain harvesting pump supply toilets and laundry?
Yes, rain harvesting pump systems are commonly used for toilets and laundries where the property is plumbed for rainwater use. The connected fixtures depend on the home’s plumbing setup.
Can a rain harvesting pump supply the whole house?
Some tank water systems can supply larger parts of a home, but rain harvesting setups are commonly used for selected fixtures such as toilets, laundry and garden taps. Whole-house supply needs careful pump and plumbing selection.
Can I replace my old RainBank system?
Yes, a Davey RainBank system may be suitable as a replacement if it matches the existing setup. Check whether your current system is above-ground or submersible, and confirm the pump, controller, pipework and tank access before ordering.
Do rain harvesting pumps need professional installation?
Yes. Rain harvesting pump systems should be installed by a suitably licensed and qualified installer. Correct installation is important for pump performance, electrical safety, plumbing, mains backup, valves and compliance.
What should I check before buying a rain harvesting pump online?
Check your tank location, tank access, existing pump model, connected fixtures, mains backup requirements, pipework, power supply, pressure needs, flow needs and whether the property suits an above-ground or submersible rain harvesting system.
Why Buy Rain Harvesting Pumps from Installed Today?
Installed Today makes it easier to compare rain harvesting pumps online by bringing above-ground, submersible, Davey RainBank and rainwater changeover options into one place.
You can compare rain harvesting systems for toilets, laundries, garden taps, tank water use and mains backup, then choose supply only or supplied and installed options where available.
Whether you need an above-ground Davey RainBank system, a submersible RainBank setup, a replacement rain harvesting pump, or a supply-only product for your own installer, Installed Today helps you choose a practical rain harvesting pump system for your home, tank and plumbing setup.
