How does the Carat Direct Rainwater Harvesting Package work?
Rainwater is collected from the roof of the property and fed into the underground tank via the downpipes. On entry to the tank, the water passes through a filter to prevent any debris from going into the tank. With this system, there is a mains water top-up unit located within the property.
This unit supplies mains water to the underground tank when the rainwater level is low. The operation of this unit is controlled via a float switch. There is a pressure-sensitive pump located in the underground tank. When a valve or tap is opened, water will be pumped under pressure until the valve is closed, allowing the system to repressurise turning the power off to the pump.
Why choose the Carat Direct Rainwater Harvesting System:
- Economical Gravel Backfill: Unlike traditional concrete-based systems, our gravel backfill approach can save you an impressive £60 per cubic metre in installation costs.
- Flexible Installation Options: With its vehicle loading lid, the system can be installed under driveways, offering a space-saving solution for homes with limited garden space.
- Eco-Friendly Construction: The underground tank is made entirely from 100% recycled plastic, emphasising our dedication to sustainability.
- Proven Quality: As a product from a European market leader, you can trust the reliability and effectiveness of this system.
- Effortless Operation: The automatic submersible pump comes with automatic restart and dry-run protection, ensuring a seamless and low-maintenance operation.
- Continuous Water Supply: Unique to this system is its integrated mains water back-up. When rainwater levels are low, the system automatically tops up the underground tank with mains water, ensuring you always have a water supply.
Images are for illustrative purposes only; there is a possibility that certain products may have been upgraded or replaced with equivalent alternatives.

















