While the two water mains that broke in Owensboro, Kentucky, have been repaired, most of the community is still without water. Owensboro Municipal Utilities officials said the 20-inch and 24-inch lines were repaired overnight Monday although customers aren't expected to see water flow pressure returning until between 3-6 p.m. Tuesday. And the boil order will be in effect until further notice. One of the failed mains is believed to be the original cast iron main from Plant A - the impacted treatment plant - installed in the early 1900s, according to OMU. Supporting concrete for the repaired mains was poured just before 7 a.m. Tuesday and should be sufficiently cured by 1 p.m. Crews will then close the newly installed 20-inch valve, and OMU crews will begin the two- to three-hour process of bringing Plant A back online. After the plant is online, crews will begin to flush the system. The water districts serving Daviess County will flush their systems as well, according to OMU. Customers are expected to see water flow pressure returning between 3-6 p.m. OMU water and electric crews, with assistance from Owensboro Fire Department, will then begin a system flush, which OMU said is expected to take about 18 hours. Residents may notice air in their water lines or discoloration. OMU is asking them to allow water to run until the air is forced out of the lines and the water runs clear. After the flush is completed water quality samples will be taken with sample results available early Thursday. Sample results should be available early Thursday morning and the boil order will be lifted upon approval by the State Division of Water. OMU and contractor crews will continue to work through the week to restore all of the 20" main and complete final tie-ins, OMU said. The work should not cause any service disruptions. The fountains, splash pad and Seasonal Inlet Water Feature at Smothers Park in Owensboro were all idle Monday as crews worked to repair a water main break that interrupted water service in Owensboro and Daviess County. Evansville's PD and S is collecting water donations at their building - 233 Bergdolt Road - and will be making daily deliveries to Owensboro residents in need. Donations are being collected between 8 a.m. and 4 p.m. Tuesday through Friday.