The makeup of water, including the levels of chlorine, varies from area to area.
This will mean that the water may taste or smell slightly different from the water in a different area.
Other reasons can be linked to the treatment process that water goes through. This treatment process can slightly vary depending on the weather, the demand and the time of year.
These factors all affect the levels of chlorine that are added to water, which in turn will slightly affect the taste and smell.