# UK ‘Black Sky event’ plan tells households to drink water mixed with bleach

- URL: https://talkfuse.com/story/uk-black-sky-event-plan-tells-households-to-drink-water-mixed-with-bleach/
- Published: 2026-11-08T18:19:23+00:00
- Original publisher: Daily Express (publisher lean: Right)
- Original article: https://www.express.co.uk/news/uk/2264402/uk-black-sky-event-plan
- Topics: UK, World

## Key points

- Emergency radio scripts cover a prolonged national power cut.
- Households are advised to store three litres per person daily.
- Filter and disinfect alternative water only if needed.

## Summary

The Department of Health and Social Care has prepared emergency radio advice for a “Black Sky event”, a prolonged power cut that disrupts internet and water supplies. The guidance explains how households without stored water could make some alternative sources safer to drink, including, as a last resort, treating water with carefully measured household bleach.

The BBC’s emergency broadcasts are planned to operate from a secure studio stocked with three days of food, fuel and water, using communications that do not depend on the internet. Households are advised to store at least three days’ drinking water, at three litres per person. The scripts recommend filtering collected water and, where possible, boiling it or using in-date purification tablets; bleach is described as an alternative, with about a quarter of a teaspoon per 10 litres and a 15-minute wait.

## Coverage

- [Daily Express: UK ‘Black Sky event’ plan tells households to drink water mixed with bleach](https://www.express.co.uk/news/uk/2264402/uk-black-sky-event-plan)
- [Daily Express: UK ‘Black Sky event’ plan tells households to stockpile plastic bags and water](https://www.express.co.uk/news/uk/2264396/uk-black-sky-event-plans)

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.