Hua Hin water supply issues were the focus of an urgent meeting held on Monday as city officials moved to address ongoing problems affecting residents, including supply interruptions, low water pressure and concerns over water quality.
On 19 January, the Mayor of Hua Hin City Municipality assigned Deputy Mayor Saraphop Ungratsamee to chair the meeting at the Waterworks Division office. Senior officials from the municipality’s engineering, production and maintenance teams attended, alongside other relevant staff.
City officials said the municipality recognises the inconvenience caused to residents by recurring water supply problems. The Deputy Mayor was tasked with coordinating closely with waterworks officials to identify short-term and longer-term solutions, monitor the situation on a daily basis and improve the overall efficiency of the water supply system.
Daily pipe flushing planned across municipal areas
Discussions during the meeting centred on the deployment of water flushing teams and the need for clearer operational planning. Officials agreed that daily water flushing would be carried out at fire hydrant points along the pipeline network, with teams rotating through areas in both Hua Hin and Nong Kae sub-districts. Results from these operations will be reported regularly, and any damaged hydrants identified during inspections are to be flagged immediately for repair.
The Waterworks Division said the flushing programme is designed to remove sediment that can build up inside pipelines, which is a common cause of cloudy water, reddish discolouration or visible particles in tap water.
Officials also explained the main causes of water quality issues that occur before water reaches households. One factor is pipe repair work. As pipelines are laid underground, repairs to burst or leaking pipes can allow soil and mud to enter the system. Although flushing and chlorine treatment are carried out afterwards, some sediment may still remain in the pipes.
A second factor relates to the nature of the water treatment system itself. Tap water is filtered to maintain turbidity levels within the accepted range of 0 to 5 NTU, meaning small amounts of sediment can still be present. Over time, this sediment can settle inside pipelines. When water pressure fluctuates, such as during temporary supply shutdowns for repairs, power outages affecting dams or production facilities, or other disruptions, sediment can be stirred up and carried through the network, particularly towards the ends of distribution lines.
Municipal officials said that once water pressure stabilises, turbidity and sediment should gradually clear. Residents experiencing ongoing water supply issues are advised to contact the Waterworks Division directly on 032 511667 or 032 511677.