Automatic Greywater Reuse for Eco-Friendly Living
A compact micro-greywater reuse system that captures water from your shower, bath and reuses it to flush toilets — automatically and safely.
ABOUT US
What Is Aqua Gratis?
Aqua Gratis is a compact micro-greywater reuse system that captures water from your shower, bath, or washing machine and reuses it to flush toilets — automatically and safely.
The system can store up to 140 litres of treated greywater , enough to flush up to 5 toilets in a typical home . It uses a multi-stage filtration process to remove impurities and deliver water that's clean and safe for reuse. With its low-energy design, Aqua Gratis is quiet, efficient, and engineered for easy maintenance.
KEY HIGHLIGHTS
The features that make Aqua Gratis exceptional
System Features
Saves 30-45% household water
Stores up to 140 litres
Compact unit fits neatly behind the toilet
Quiet, low-maintenance operation
Ideal for new build homes
Carbon-negative & sustainability compliant
SMART Meter Integration
Real-time water reuse monitoring
Remote system health alerts
Intelligent demand management
Tracks household water-saving performance
Supports leak detection & early fault identification
Helps optimise overall water efficiency
HOW IT WORKS
From Greywater to Flush Water
An automated process converts everyday used water into safe toilet-flush water.
TECHNICAL SPECIFICATIONS
Experience the future of water conservation with exclusive benefits
Capacity
140 Litres
Total storage capacity
Coverage
5 Toilets
Typical household coverage
Energy Use
Low Energy
Quiet & efficient operation
Maintenance
Minimal
Easy to maintain system
INSTALLATION & MAINTENANCE
Simple Installation & Reliable Maintenance
Easy Installation
Compact design fits neatly behind toilet
Professional installation required
Ideal for new builds and retrofits
Self Monitoring
Automatic operation requires minimal input
SMART alerts for system operation
Regular filter checks recommended
why choose AQUA GRATIS?
Smart technology and UK-ready design for real-world living.
British Standard
Designed to BS EN 16941 with full compliance
Self Cleaning
Patented with annual maintenance
Perfect for Housing
Optimized for social and low-cost to affordable
IoT Enabled
SMART monitoring and wireless communication