After Storm Emma, around 12,000 homes are now without water access or are experiencing very low-pressure levels in London alone, according to data released by Thames Water.
Water companies says they are witnessing "exceptionally high levels of demand for water" as engineers attempt to fix a rash of burst pipes and leaks on the network.
He said: "Where possible, take short showers rather than baths, do not leave taps running unnecessarily and only run washing machines and dishwashers when you have a full load". This will make a real difference.More news: How Shaquem Griffin's National Football League combine performance inspires others
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"We will be replenishing the bottled water stations already set up as quickly as we can this morning and we will be opening more as soon as possible", she added.
South East Water urged customers to check their own properties for leaks and arrange for them to be repaired, and to only use water for "essential tasks".
Customers have also been asked to check their pipes for leaks and bursts and to call a plumber if necessary. "In the meantime our teams are working hard to prioritise services for vulnerable customers and stand up locations from which our customers can collect bottled water".
Severn Trent, a supplier of water to 4.3 million homes and businesses in the middle of England, said the number of burst pipes was up 4000 percent, while in Wales, Welsh Water said "unprecedented challenges" had affected 4,500 homes. If they see a leak they can report it to us on our interactive map https://inyourarea.digdat.co.uk/southeastwater where they will also find updates on supply issues in their area.