Irish Water says a water treatment plant interruption may cause supply disruptions to part of West Tipperary.
The areas impacted include Dualla, Garranmore, Ballyheens and surrounding areas.
The company says works are underway and are scheduled to take place until 11pm tomorrow.
A water tanker is available at car park across from Oil Depot, Killastafford Cross for the duration of the disruption.
Irish Water make every effort to ensure that the alternative drinking water supply provided, including the tanker / bowser, and dispensing tap, are adequately disinfected.
However as it is not practical to provide sterilised containers for the public to transport drinking water from the tanker to their homes, we cannot guarantee that any containers used by the public do not negatively impact or contaminate the drinking water.
Therefore, as a precautionary measure, it is recommended that any members of the public who obtain water from a tanker or bowser boil the water before use.