Tamworth Regional Council says water restrictions will be introduced in Manilla Saturday, November 2, 2013.
The Level One restrictions come into force tomorrow, meaning the use of water sprinklers and hoses will be limited.
Flows in the Namoi River have fallen to just four megalitres a day at the North Cuerindi gauge upstream of the Namoi Weir.
Sprinkler-watering of gardens will only be allowed between 6:00pm and 8:00pm.
Vehicle washing with a hand-held hose is permitted between 6:00pm and 8:00am and pools can be topped up at any time.
Tamworth Regional Council says flows in the Namoi River, from which most of Manilla's water is sourced, have been dropping steadily due to a lack of rain.
Council says inflows have now fallen below 10 megalitres a day.
Council is warning residents in Nundle, if reasonable rain does not fall soon, they will be next to receive Level One restrictions.
© ABC 2013
18:09 EST The forecast for every day this week is almost identical, windy with showers in southeast, sunny elsewhere and warm in the north.