Rainwater Harvesting

Keep the Rain That Falls on Your Site.

Rainwater harvesting collects the rain from your roofs and paved areas, filters it, and stores it for use or sends it back into the ground to recharge the water table.

Discuss Rainwater Harvesting

3D concept section of a school roof whose gutter drains through a filter into a storage tank, with an overflow to a recharge pit in the ground.

Sized to Your Site

We size each system to your roof and paved area and the local rainfall record, so the tank and recharge pits match the water you can realistically catch.

Where It Fits

Campuses, schools and hostels with large roofs
Government and public buildings
Housing and townships
Factories and warehouses
Areas where groundwater levels are falling

Your roof is already a catchment

A 500 M² Roof Can Catch 40 Tankers of Water a Year.

Every 1 mm of rain on 1 m² of roof is 1 litre. Most of it runs into the drain within minutes.

Illustrative: 500 m² roof × 1,000 mm of rain a year × 80% captured = 4 lakh litres. We calculate yours from local rainfall records.

40tankers a yearEach drop is one 10,000-litre tanker.

See the difference

Keep the Rain. Lose the Flood.

Illustration of the same school with downpipes into a filter, a storage tank and a covered recharge pit.

Illustration of a school in the monsoon, roof water splashing into a waterlogged courtyard and out to the street drain.

Rain lost to the drainRain harvested

Courtyards waterlogged
Tanker bills every dry month
Borewells going deeper

Stored rain for gardens and flushing
Groundwater recharged on site
Less waterlogging

Illustrations.

Myth vs fact

Why Sites Skip It, and Shouldn’t

Myth~~We don’t get enough rain to bother.~~

Every 1 mm on 1 m² of roof is 1 litre. It adds up fast.

Myth~~Harvested rain is only for drinking.~~

Use it for gardens, flushing and cleaning, or recharge the ground.

Myth~~It needs a big new tank.~~

Overflow can go straight into recharge pits under your site.

How it works

From Roof to Tank to Ground

Roof and pavingRain collected from what you have.
First flushThe dirtiest rain is diverted.
FilterLeaves and silt removed.
StoreClean rain fills a tank.
RechargeOverflow soaks back into the ground.

Made for

Made for Large Roofs and Paved Areas

Campuses, schools and hostelsLarge roofs, steady demand.

Government and public buildingsOften required by building bye-laws.

Housing and townshipsLess waterlogging, more groundwater.

Factories and warehousesWide roofs that waste the rain.

Areas with falling groundwaterRecharge where it is needed most.

TownshipsPlanned in from the start.

Timing

The best time to build is before the monsoon.

How long installation takes depends on the roof area, the storage and any recharge pits. You get a timeline with the design, so the system is ready before the rain.