Rainwater Harvesting In Apartments

Paula Woolley

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With the boom in the housing sector, apartments are mushrooming all over the city of Cochin. As a result a huge demand is placed on the infrastructure of the city for water, sewerage, storm water drains or roads. Apartments can supply supplementary water requirement, manage floods and reduce pollution of the environment by designing innovative systems and work towards sustainable technologies.

The ideal catchments for rainwater are rooftops. If they are kept clean and arrangements are made to allow rainwater to runoff to down pipes a lot of water can be collected. The rainwater is brought by the down pipes to the storm water drains. It is best to separate them from sewage and grey water lines. It is recommended by the National Building Code that the rain water pipes be separate from other waste water pipes and thus prevent overflowing man holes and overload of the sewage treatment plants. Faulty designs in apartments may tend to merge the two. Special care is taken by builders Cochin to design proper rain water harvesting for their apartments.

The rain water is brought down by the down pipes to large rain barrels of 10,000 liter capacity in the basement. The rainwater thus harvested is used for car washing, gardening and other non-potable use. The storm water drainage network should be cleaned regularly to ensure that a substantial amount of storm water also becomes harvestable and can be stored or be recharged into the aquifer.

Smart designs and rain water harvesting can help apartments to supplement their water requirement and increase the life of their bore wells. This can also avoid urban floods.
 

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