Modernize your facilities with an eco-conscious approach
GREHA gives water a second life through smart greywater and rainwater systems designed for homes, hotels, and industrial applications.
Water from showers and baths can be treated and reused for toilets, laundry, and garden irrigation, while rainwater can be collected and repurposed for everyday non-potable use. A smart, reliable solution that helps reduce water consumption, supports sustainability, and delivers measurable environmental impact from day one, without compromising comfort or daily routine.
How It Works
Smart water reuse, made simple.
GREHA collects grey water from showers, baths, and other approved sources, treats it, and redirects it for non-potable uses such as toilet flushing, laundry, irrigation, and cleaning. Each system is configured for residential, hotel, or industrial applications, reducing freshwater consumption through a reliable, fully automated process.
STEP 02
Clean
GREHA treats greywater through a combination of biological and physical purification stages, producing clean, high-quality water ready for safe reuse. No added chemicals and no filters that require regular replacement.
STEP 03
Reuse
The treated water is automatically redirected to toilets, washing machines, and garden irrigation. Every day, GREHA reduces the need for fresh water while keeping the entire process simple, efficient, and fully automated.
STEP 01
Collect
Greywater from showers and baths is directed into the GREHA system through a separate piping network. It can be seamlessly integrated into new buildings and installed efficiently during renovation projects.
Three Specialities. One solution
From individual apartments to large-scale buildings, GREHA recovers and reuses up to 95% of the greywater passing through the system. By keeping water in circulation, it can reduce total fresh water consumption by up to 45%.
Home
for apartments and homes
The compact system. Quiet enough to live next to. Recycles up to 350 liters a day, for households with one or two bathrooms
Home
1-2 Bathrooms
Up to 350L/day
Hotel
for AirBnBs & Hotels
The high-capacity system. Designed for reliable hotel operation. Recycles up to 2.000 liters of water per day, helping reduce freshwater consumption across guest rooms and shared facilities.
Hotel & AirBnb
5-30 Bathrooms
Up to 10000L/day
Industrial
for industries & factories
The custom-built system. Engineered for industrial applications and tailored to each facility’s specific requirements. Designed to handle demanding water-reuse needs, with capacity, treatment stages, and automation configured to match the process.
Industrial
Industry use
Custom made