Welsh Water has said that the issue is affecting homes in the Sychdyn area. Welsh Water said: "We're aware of a burst on our network which is affecting the water supply to this area. There are five main stages that Welsh Water follow for water supply issues. Fault located - Repair planning, work with third parties, road closures, ordering of specialist equipment or fittings. Welsh Water added: "Running your cold kitchen tap will help to clear any discolouration in your supply.