What you can do to conserve water?
Use only as much water as you require. Close taps well after use. While brushing your teeth do not leave the tap running, Open it only when you require it. See that there are no leaking taps. Get a plumber to come in and seal all leaks.
Use a washing machine that does not consume too much water. Do not leave the taps running while washing dishes and clothes. Install small shower heads to reduce the flow of water. Water in which the vegetables and fruits have been washed can be used to water the flowers and ornamental potted plants. At the end of the day if you water left in your water bottle do not throw it away, pour it over some plants.