The Reverse Osmosis Plant installed in the Sri Kaliswari College caters to the drinking water needs of all the Students, Teachers, supporting Staff and the Visitors. The raw water with an average Total Dissolved Solids [TDS] of 750-1000 ppm is treated to reduce the TDS content to less than 100 ppm the generally acceptable upper limit of the TDS. This is done in three stages, namely: Pretreatment, passage of the water through 6 RO membrane filters held in parallel to each other main process and Post treatment.

The maximum capacity of the plant is 2000 litres per hour. The utilized capacity is 1000 lit/hr potable water. This water is Pure, Tasty and Hygienic rendering it highly suitable for human consumption. The waste water from RO unit is used for gardening and washing purposes. The institution is liberal in the provision of our own made RO water. This plant is connected to drinking water in every floor of Class room blocks, Administrative block, Library and Laboratories etc.