The eco-cistem™ is a pioneering toilet cistern designed to revolutionise water conservation. It flushes with grey condensate water from air conditioning units, providing an innovative solution to reduce freshwater consumption. Already installed in numerous commercial hotels and office buildings, the eco-cistem™ is delivering substantial water savings.
This advanced cistern is specifically engineered to capture and reuse condensate water – typically wasted and sent to the drain – by redirecting it to the toilet cistern for flushing.
The eco-cistem™ unit features a unique, patented 18-litre, twin-chamber design. It can store up to 12 litres of ‘free’ condensate grey water, with the remaining six litres dedicated to flushing. The system prioritises using grey water, only drawing fresh water when no condensate is available, ensuring optimal flush performance without any compromise.
Condensate production from air conditioning units varies, but even in the UK, the demand for air conditioning is growing due to climate change and increasingly thermally efficient buildings. For instance, a small 1.75kW air conditioning unit can generate over 1 litre of condensate per hour. An eco-cistem™ installation will yield significant freshwater savings even in this scenario.
The eco-cistem™ has been designed and manufactured in the UK and is suitable for various projects, including hotels, apartments and office blocks. It has been created as a concealed installation and, at 485mm high x 476mm wide x 195mm deep in size, can fit in all standard service voids. It is simple to install for wall or frame-mounted WCs and has adjustable flush volumes between 3.5 and 6 litres to suit different regions worldwide. It has undergone testing and received WRAS approval, ensuring compliance with UK Water Supply Regulations.
Additionally, it has passed the AB Air Gap test conducted by KIWA, achieving Category 5 compliance. The cistern is also eligible for BREEAM points under WAT 01 for water consumption and can earn up to six points in LEED’s water efficiency.
In 2023, Paul Crossley was appointed managing director of eco-cistem™ to refine the product design and branding, streamline the UK manufacturing process, and establish several test sites to measure water savings and gain the required accreditations. The development work has now been completed, successful case studies have been conducted, and the product is currently in stock and ready for distribution.
Manufactured in the UK, the eco-cistem™ is ideal for hotels, apartments, and office blocks. Its compact size (485mm high x 476mm wide x 195mm deep) allows for easy installation within standard service voids, whether wall or frame-mounted. The cistern offers adjustable flush volumes between 3.5 and 6 litres, catering to diverse regional needs. It has been tested and certified with WRAS approval for UK Water Supply Regulations and achieved Category 5 compliance in the AB Air Gap test by KIWA. The eco-cistem™ also qualifies for BREEAM points under WAT 01 for water consumption.
eco-cistem™ is the world’s most environmentally friendly toilet cistern. More at https://ecocistem.co.uk/