Donal Hickey: What happens if water stops flowing?

With our growing population, there will be challenges to provide sufficient drinking water, especially to Dublin and other areas with large populations so water conservation is important
Is there anything we take for granted more than the water that seems to flow so freely from our taps?
Water supplies, however, are not infinite as we learned in recent summers marked by conservation appeals during periods of drought and temperatures hitting more than 30°C. And, with climate change, warmer summers with even longer rainless spells are forecast.