AQUASTAT -101 is an aqueous polyelectrolyte based Antiscalant manufactured by Ion Exchange. It has been specially designed to be used in reverse osmosis application. Reverse Osmosis (RO) is the procedure where deionization of water takes place as it is being passed through under pressure through a semi-permeable reverse osmosis membrane. Using of the reverse osmosis membrane for filtration of heavily soiled water is generally accompanied by some serious threats that may lower down the productivity of the membrane. Generally the three major issues or concern are Degradation, Fouling of RO membranes and Scaling.