A statement from SEW said: “Once again, we’re really sorry for the interruption.
“We know how disruptive it is to be without water and we’re doing everything we can to get you up and running as soon as possible.”
The leak comes amid a period of prolonged hot and dry weather.
SEW has come under fire in recent months after multiple water supply failures in Kent and Sussex.
Some 24,000 SEW customers had no water supply or low pressure between November and December – just weeks later up to 30,000 households faced days of water misery.
The firm’s new boss John Halsall has said that he faces a “huge challenge” in improving SEW’s performance and reputation.
He took over from David Hinton, who earned £400,000 and was awarded a £115,000 bonus in 2024.
Ofwat also recently proposed fining the firm £22m over issues affecting 286,000 people in Kent and Sussex between 2020 and 2023.
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