Uisce Éireann says it would cost €500m to replace Cork City water pipes causing discolouration

About 54% of the city’s water pipes are cast iron, and are between 65 and 100 years old

Complaints from the public about the discolouration in Cork's water supply have increased 10-fold at times.

There is still no end in sight to the discolouration problem affecting Cork’s domestic water supply, which has seen complaints from the public increase 10-fold at times.

Uisce Éireann has accepted the discolouration is generally caused by excess manganese from the inside of the city's old cast-iron water mains, but it also told city councillors an investment of least €500m would be required to fully replace those pipes, some of which are over 100 years old.