Rooftop water harvesting provides a way to collect and store rainwater falling on buildings. Rainwater is collected from roofs through gutters and down pipes, then directed into underground storage systems like recharge wells or percolation pits. This allows water to seep into the ground and recharge local groundwater supplies. Rooftop harvesting benefits buildings by providing a readily available source of relatively clean water for drinking and other uses from the building's own water table, without relying on external water supplies.

1. Ministry of category: Ministry of Water Resources, River Development, Ganga Rejuvenation. Problemcode:#MWR21
Problem statement: Rooftop water harvesting College code:
Team Leader Name : B. Naga Mohan
Introduction:
• Roof water harvesting provides water close to home. In cities there are so many apartments ,complexes, multistoried building
etc..depends on that we discuss our idea here.
• Rainfall is collected as it runs of the catchment area of house roofs or compacted or paved surfaces
• The collected water is transported through a system of gutters and down pipes.
• Roof materials suitable for water harvesting can be of many sorts, depending on technology and natural conditions.
Solutions:
• Due to lack of open space for capturing runoff, is mostly in sub soil storage as ground Water by injecting large amount of rain
water into soil during rains .
• Direct at last one or more these pipes located close to the existing below ground level
• Masonry tank into it through filter.
• In the absence of open well, recharge well could be dug and it is used to store water.
• In house /flat complexes there is not enough space to dig a well, a recharge pit can be made.
Materials used:
• Galvanized iron/ aluminum sheet ,corrugated sheet , cement sheets , asbestos sheets , tiles and slates ,organic roof covering.
Storage facilities:
Ferro cement ,pumpkin tank ,drums, brick tanks, precast tank, plastic tank ,underground tank.
Technology stack:
1.AOSON
2.CSS
3.JAVA
4.ANDROID STUDIO

2. Picture description:
• Here rainfall is coming which falls on building roofs from this we connected the
down pipes the water running down the pipe of building into service wells or
percolation pits.
• Water trickle down the layer of pebbles and boulders designed for underground
filtration on chambers.
• Filtered water flows into either recharge well or the collection chambers.
• With this setup, the buildings can draw water readily from its water table in this
basement, without any shortage in supply.
• This is the way how rooftop water harvesting works.
Dependencies of this rooftop water harvesting:
•Increased availability of relatively clean, reliable and affordable for drinking, domestic
use ,sanitation etc;
•Management of water at house hold level and therefore avoiding water conflicts.
•Possibility of storing water during rainy season and using it during dry season.
•By using this we can easily avoid the water conflicts between two states.
•We protect rivers with out going extinction.
•We decrease the economic matters of country
•
THANK YOU FOR GIVING THIS OPPURTUNITY