The National Green
Tribunal on Wednesday sought a response from the Centre on a plea seeking
directions regarding the wastage of water caused by reverse osmosis (RO) water
purifiers. The bench issued a notice to the ministry of water resources on the
plea filed by an NGO called Friends. The plea alleged that for each litre of
purified water, the filter dumps three-to-four litres of waste water, resulting
in wastage of up to 80 per cent of water. The tribunal was hearing a plea filed
by the NGO seeking directions to the ministry to conduct research work about
the “quality” of water produced by RO as compared to natural water. The plea
said that manufacturers are attracting consumers using marketing strategies
while simultaneously contaminating water sources.