Water has been spotted spilling onto a residential street following a “four-day” leak. Southern Water says urgent maintenance is being carried out at the top of Southdown Road in Halfway, on Sheppey. A video of the leak was posted online today, with part of the area barricaded off and water seen spraying up from a hole in the road. Anne Collins said: “I drive along there every day coming back from my mum’s house. “It’s been like that since the weekend, but was only trickling down the road. However, the water managed to reach quite a way down.” Another resident added: “Apparently it’s been leak…