Seeking response from the Centre to stop wastage of water caused by using reverse osmosis (RO) water purifiers, the National Green Tribunal (NGT) on Wednesday issued notice to Ministry of Water Resources on an NGO’s plea alleging that for each litre of purified water, filter dumps almost three to four litres of waste water resulting into wastage of around 80 per cent water.
A bench headed by NGT Chairperson Swatanter Kumar was hearing a plea filed by NGO Friends seeking directions to the Ministry to conduct research work about the quality of water produced by RO water purifiers as compared to natural water. The RO water filter companies are attracting consumers with their smart marketing strategies but the mechanism wastes more water and contaminates water sources, the plea, filed through advocate Sugriva Dubey, said. The NGO has sought an “effective and centralised” water purification system covering housing clusters in rural and urban areas so that the demand for water purifiers gets reduced automatically.