Water & Sanitation • PREP CHECKLIST
Water Shortage Checklist: What To Have Before the Taps Stop
A water emergency is much easier when the household already knows how many litres it has, who needs extra support and what will be used for toilets and hygiene. This checklist turns the vague idea of “store some water” into a maintained household system.
Drinking-water reserve
Count actual litres rather than bottles. UK Prepare cites 2.5 to 3 litres per person per day as a survival drinking baseline and around 10 litres per person per day as a more comfortable planning level that supports basic cooking and hygiene. Build the reserve in stages if space or cost is tight. Store it away from chemicals and excessive heat, rotate it through normal use and keep a written total so the household knows what it has without opening cupboards during an outage.
Containers and transport
Keep clean, food-grade containers that can be carried when full. A large container that nobody can lift is not useful at a water-distribution point. Consider a small trolley or other safe way to move supplies if mobility is limited. Keep potable containers clearly different from utility-water containers. Never reuse vessels that held fuel, paint, pesticides or cleaners for drinking water.
Hygiene and sanitation kit
Store soap, hand sanitiser, heavy-duty bin liners, toilet paper, disposable gloves where appropriate, cleaning materials and absorbent material. The exact emergency toilet method depends on whether local sewerage is functioning, so keep the equipment flexible and follow official instructions during the event. Include menstrual, infant and continence products where relevant.
People with additional needs
Write down water-dependent medical needs, infant feeding requirements and any extra daily drinking requirement. UK Prepare advises people who rely on water for medical devices to plan with their care team and eligible customers to join their water supplier’s Priority Services Register. Do this before an emergency rather than trying to establish eligibility after the network fails.
Pets and animals
Include drinking water for pets in the household calculation and store their bowls or travel containers with the emergency supplies. Do not assume rainwater or outdoor puddles are safe simply because an animal would drink from them. Livestock or larger animals need a separate resilience plan because household bottled-water quantities may be completely inadequate.
Information and contacts
Save your water-company incident number, account details if needed to identify the property, local authority contact, medical contacts and an out-of-area family contact on paper as well as digitally. Know how your water company announces alternative supply points and whether you are registered for priority support. During a large incident, use official messages rather than social-media rumours about contamination or resupply locations.
Run a household rehearsal
Turn the mains stop valve off for an hour without actually creating a hazardous situation and ask the household what they would do for drinking, food, hand washing and toilets. Do not disable essential medical equipment or create unsafe conditions. The purpose is to expose practical gaps: nobody knows where the bottled water is, the containers leak, the manual can opener is missing or the person who knows the plan is away. Fix those gaps while the taps still work.
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Build this topic into a wider plan, then see how the same dependency could fail in an AI-collapse scenario.
Evidence desk
Practical water and sanitation actions on this page use current UK emergency and drinking-water guidance. Catastrophic AI-triggered network failure is scenario analysis, not a claim that such an event is happening or inevitable.
Practical guidance reviewed: August 2026 · In a real emergency, follow official local instructions and emergency services.