The Nelson Mandela Bay Municipality says it's aware of numerous reports of discoloured water in areas around the western suburbs, such as Newton Park and Westering.
In a statement on Monday morning, the municipality assured residents that the water poses no danger or health hazard and is safe to drink.
It says discolouration is caused by mineral deposits that build up inside water infrastructure over time.
When flow rates change, such as caused by pipe bursts or reservoirs emptying as a result of the drought, this build-up can be dislodged, causing discolouration.
The municipality has urged residents to boil the water if they are concerned.
