Water management in residential areas often faces challenges such as unpredictable shortages and damaging overflows due to inadequate monitoring of tank water levels. This study presents the design and implementation of an Internet of Things (IoT)-based tank water monitoring system aimed at providing a reliable and efficient solution to these issues. Utilizing advanced sensor technology, the system accurately monitors water levels, volume, and quality within storage tanks. It incorporates dual sensors that enhance reliability: one sensor manages the water level, initiating pump activation when levels fall below a critical threshold, while the second sensor prevents overflows by deactivating the pump once the water level reaches a pre-set maximum. The system is designed to be user-friendly, offering real-time water level data and control via an Android application or web dashboard. This allows for remote operation of the motor pump, ensuring that water availability is consistent and secure, while also safeguarding against overflows and subsequent water wastage. The implementation of this IoT system demonstrates significant potential for enhancing water resource management in residential settings, promoting both sustainability and ease of use.