WATER CONSERVATION:
1. RAIN WATER HARVESTING
The rainwater harvesting methods adopted for plotted and group housing are through collection of rooftop rainwater and surface runoff harvesting.
Rain Water Harvesting Systems at Site Level
Rain water from Roof is diverted to a Recharge pit
Rain water from Roof is diverted to a Storage Tank
DIFFERENT TYPES OF RECHARGING STRUCTURES
RECHARGE BORE WELLS
Rainwater collected from rooftop of the building is diverted through drainpipes to settlement or filtration tank. After settlement filtered water is diverted to bore wells to recharge deep aquifers.
RECHARGE DUG WELLS
Rainwater from the rooftop is diverted to dug wells after passing it through filtration bed. Cleaning and desalting of dug well should be done regularly to enhance the recharge rate.
SOAK AWAY OR RECHARGE SHAFTS
Soak away or recharge shafts are provided where upper layer of soil is alluvial or less pervious. These are bored hole of 30 cm dia. up to 10 to 15 m deep,
At the top of soak away required size sump is constructed to retain runoff before it filters through soak away. Sump should be filled with filter media.
Recharge pits are small pits of any shape rectangular, square or circular, constructed with brick or stone masonry wall with weep hole at regular intervals.
These pits are suitable for recharging of shallow aquifers, and small houses.
RECHARGE TRENCH
Recharge trench in provided where upper impervious layer of soil is shallow. It is a trench excavated on the ground and refilled with porous media like pebbles, boulder or brickbats.
This method is suitable for small houses, playgrounds, parks and roadside drains.
PERCOLATION TANKS
Percolation tanks are artificially created surface water bodies, submerging a land area with adequate permeability to facilitate sufficient percolation to recharge the groundwater.
Percolation tanks should be built in gardens, open spaces and roadside greenbelts of urban area.
2. WASTE WATER RECYCLING SYSTEM
3. EFFICIENT IRRIGATION TECHNOLOGY
Smart irrigation controller
RAIN WATER HARVESTING AT BUILDING LEVEL
4. WATER METERS
5. PRESSURE REDUCING VALVES
High water pressure leads to water waste
6. INSULATED PIPES
7. EFFICENT TAPS AND FITTINGS
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