How did Harappans manage water?

The Harappans had advanced systems to manage water, which were crucial for their urban life. They built wells in almost every house, providing residents with easy access to water. Additionally, the cities had sophisticated drainage systems with covered drains that ran along the streets, ensuring waste water was carried away efficiently. The Great Bath of Mohenjo-daro is another example, where water was used for bathing and possibly for ritual purposes, showing their skill in water management. This careful planning indicates their understanding of hygiene and the importance of water for daily life.

This question related to Chapter 6 Social Science Class 6th NCERT.
From the Chapter 6. The Beginnings of Indian Civilisation.
Give answer according to your understanding.