Bath, basin and laundry water is 50–70 % of a building's sewage and the easiest to recycle. We treat it separately and return it for flushing, gardening and cooling — cutting fresh-water demand by a third or more.
Greywater — from showers, basins, laundry and kitchen sinks (excluding toilets) — is low in pathogens and organics compared with blackwater. Treating it in a dedicated compact plant is cheaper and more reliable than treating combined sewage, and the product water is consistently clear enough for flushing, landscape irrigation, floor washing and cooling-tower make-up.
Typical yield: 60–100 litres per person per day recovered — for a 300-key hotel or a 500-flat society that is 30–50 m³/day of fresh water saved, every day.
An STP treats combined sewage including toilets. A greywater plant treats only the lighter streams, so it is smaller, uses less energy and produces cleaner water more consistently — but needs separate plumbing or a diversion point.
Often yes, at the stack or collection-tank level, if bath/basin and toilet stacks are separate or can be separated. We survey the plumbing before proposing.
Flushing and landscape standards (turbidity, BOD, faecal coliform) as per CPHEEO/MoHUA reuse guidelines; with UF and disinfection it is also suitable for cooling make-up.
Packaged greywater plants for 10–50 KLD are in the same range as a small STP; payback against municipal/tanker water is typically 2–4 years.
Send occupancy, building type and plumbing layout — we reply with yield, plant size and budget within one working day.