Specialising in
Grey Water
and
Rainwater Harvesting systems in South Africa .

Grey Water: a Mandatory Option

Posted by: Saving Water SA (Cape Town, South Africa) – partnered with Water Rhapsody conservation systems
22 December 2009

Failure by Chennai (India) to implement grey water conservation methods, similar to those in use in both Bangalore and Mumbai, has resulted in the water table in Chennai dropping to a current level of 400 meters from 4 meters in 1960.

Beach Near Chennai. Photo by bbjee under Creative Commons Licence 2.0

Chennai’s usage of rainwater harvesting structures, previously made mandatory by government for all buildings in Chennai City, is still working but Dr Ramachandran of the Climate Centre; Anna University has recommended that steps are taken similar to those in Mumbai where proposals have been made to also make the use of grey water mandatory.

Grey water is the waste-water from baths, showers, basins and laundry, and can be safely used for garden irrigation or toilet flushing. Dr Navaneetha Gopalakrishnan Anna University’s Environmental Studies Department is recommending that it be made mandatory for urban areas to make use of grey water.

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