You’re thirsty. You grab a glass of water and turn on the tap. Fresh, clean water runs from the tap into your glass. You skoll the water; your thirst is quenched. You may even sigh at the relief, or fill your glass again.
This happens incalculable times a day across the country. At workplaces, homes, hospitals and healthcare centres, in the city and regional centres. It happens so frequently, the vast majority of us give no further thought to the work that goes on behind the scenes, in the pipes and water towers, to ensure that our water is clean, drinkable and safe from bacteria.