Frequently Asked Questions
Various kinds of filters are used in Rainwater harvesting to remove dirt
accumulated on terrace .If the rainwater is to be used for flushing toilets
alone, there is no need for any filter but the roof needs to be kept reasonably
clean. If necessary, a grating can be fixed at the inlet point to the loft from the
roof.
To collect rainfall on terrace or roof and use it as a first source either during
monsoon or after mansoon .Rooftop Rain Water Harvesting is the technique
through which rain water is captured from the roof catchments and stored in
reservoirs. Harvested rain water can be stored in sub-surface ground water
reservoir by adopting artificial recharge techniques to meet the household
needs through storage in tanks.
To replenish the water used through out the year durning mansoon . It is an
idea that germinated from the age-old borewell technology was taken a step
further by the organization. and what came into being was a bore well
recharge. so instead of depending on groundwater this borewell gets its
input from rainwater.
Rainwater has huge potential which is vested if not used .Rainwater is the
ultimate source of all the fresh water that we use. In India, rainfall occurs in
short periods of high intensity, allowing the rain falling on the surface to flow
away fast. This leaves little scope for recharging the groundwater, which
results in water scarcity in most parts of the country
Online filters are used and get fitted on the down take pipes of the building ,
and Underground filters are used below ground surface .
For profession , An engineer can practice or as per guide line of local body or
municipally But for personal use You, me and everybody! It will not only
provide you with water in times of acute water shortage, but will also
recharge the groundwater ....
It can be implemented on any land where rainfall occur .RWH can be done in
homes, apartments, societies, schools, institutions, commercial premises and
any other space as long as there is a catchment area in the form of a roof or
open space to capture the rain.
Yes , It is feasible to new building also .
A fairly simple calculation will tell you how much rainwater you can harvest.
Area of the plot *Annual average rainfall
A rainwater harvesting system comprises components of various stages -
transporting rainwater through pipes or drains, filtration, and storage in
tanks for reuse or recharge
Artificial recharge is the planned, human activity of augmenting the amount
of groundwater available through works designed to increase the natural
replenishment or percolation of surface waters into the groundwater
aquifers
Deep percolation is a hydrologic process where water moves downward from
surface water to groundwater .Recharge is the primary method through
which water enters an aquifer.
A recharge pit allows the rainwater to replenish groundwater by recharging
the underground aquifers. It can be built to recharge a bore well or just to
help the water infiltration in an area.
The well should be at least 20 feet away from the pit. Recharge well should be
as far as possible from the foundation of the structure . It should be at least
as far from the foundation as the depth of the foundation – this is only a
thumb rule. Recharge well should be dug as close as possible to any existing
borewell.
It can solve water problem either partly or fully .It will reduce water bills,
provide an alternative supply during water restrictions and help maintain a
green, healthy garden. In fact, depending upon tank size and climate,
rainwater harvesting can reduce mains water use by 100%.
All states are promoting rainwater harvesting.
