I did learn a lesson when my taps stopped for a day in near 30C summer 2020, Thames Water didn't provide any alternative and the shops ran out of bottles.
They should supply 10 liters per person per day within the first 24 hours, they normally put the bottle station locations on the website. If the interruption is shorter then they might not.
They should supply 10 liters per person per day within the first 24 hours, they normally put the bottle station locations on the website. If the interruption is shorter then they might not.