Twiggs County and Jeffersonville crews believe they found a water-line break that has affected water pressure for hundreds of customers.
Around 1 p.m., they said the break was on Watson Road, near the high school.
They shut off water flowing to the line on both sides of the break while they work on the line.
That means people elsewhere in the county should see their water pressure return this afternoon.
They estimate that the repairs will take about two hours.
The low water pressure has closed Twiggs County schools, and the sheriff's department has sent 33 prisoners to jails in other counties.
A state patrol helicopter came to Twiggs Countyto help search for the leak by air.
And Macon Water Authority crews are also in town with sonar technology to help find cracks and breaks in underground pipes.