Abstract: The proposed research in this study is carried out in order to reduce water wastage. On an average, one person wastes a minimum 30 L of water every month during the Winter season or throughout the year in countries where ground water is not used in showers. The proposed study uses a circuit named as the water controller circuit which reduces water wastage. The water controller circuit has an insulated storage tank placed between the geyser and the shower water lines, the insulated storage tank is connected to both water line coming out of the geyser and main water line. The water flow in the insulated storage tank is controlled with the help of a digital timer and a temperature sensor. The timer counts time in minutes and temperature in °C. This circuit is built with the help of the microcontrollers. The timer circuit is compared with the timer of "Polar Smart Watch" and Apple iPhone 6s. The temperature sensor circuit is tested by placing in the 9 L bucket of melted ice water and in another test placed closed to heater operating at maximum heat. The proposed research is tested with three geysers of different makes and a gas geyser. The circuit provides excellent results.