Thames Water announced a hosepipe ban starting Thursday to restrict non-essential water use across 10 counties in southern England [1].

The measure comes as three recent heatwaves have significantly reduced water supplies [3]. By limiting the use of hosepipes for watering gardens, washing cars, and filling pools, the company aims to protect remaining resources during a period of extreme weather [1, 2].

The scale of the restrictions is extensive. One report indicates the ban will affect 10.1 million customers [3], while other estimates suggest more than 10 million customers are impacted [7]. Some data points to nearly four million households being affected [1], with one source claiming as many as 16 million customers will be prohibited from non-essential use [1].

Thames Water is not the only provider implementing such measures. South East Water announced a separate ban affecting 2.4 million people in Sussex, Surrey, Hampshire, and Berkshire [5].

These regional restrictions contribute to a broader national trend. More than eight million households have been placed under hosepipe bans across the UK [4]. Some projections suggest that more than 26 million people will be living under such restrictions by the end of the week [6].

The bans are designed to prevent total system failure during prolonged droughts. Residents are encouraged to find alternative ways to maintain their properties without relying on the mains supply via hosepipes [1, 2].

“Three recent heatwaves have reduced water supplies, prompting the ban to protect resources.”

The simultaneous implementation of bans by Thames Water and South East Water signals a critical drop in reservoir levels across the south of England. With over 26 million people potentially affected nationwide, the situation suggests that the UK's water infrastructure is struggling to keep pace with the increasing frequency of extreme heat events, moving these restrictions from occasional anomalies to a recurring seasonal necessity.