Many Horsham households have woken up this morning (Sunday October 14) to no water supply or low pressure.
Southern Water says they are aware of a burst water main in the Horsham RH12 area.
Reports from readers suggest most of the west side of the town has been affected.
The Southern Water website says: “Our team is on the way to investigate and make the necessary repairs.
“Sometimes repairs take longer than we’d like, as we need to complete numerous checks and tests.
“We apologise for any inconvenience caused and we thank you for your patience.”