RESIDENTIAL WATER TREATMENT CUM STORAGE SYSTEM. Presently the methods adopted for purification of water is intended particularly for only one discharge point. Also, in order to make purification possible in varies aspects such as removal of Pathogenic micro organisms , Iron , Manganese ,Silica ,Suspended solids , mud , grit, colour, turbidity , biochemical oxygen demand , off gases etc separate purifying units for each process should be placed in the discharge. This makes the purification process more complex, expensive and also the set up captures a large area. Water storage tanks hold equal importance in preserving the quality of water. The present day water tanks are designed in such a way that the suspended solids after settling process get deposited towards the bottom of the tank .The new invention is made to avoid all these problems. The new invention is designed in a very compact and simple manner, facilitated to carry out purification in all aspects and also the settled solids can be removed safely without entering the waterlines. The new invention is made possible to attain safe, clean and purified water at all discharge points.