Storing Two Weeks of Water in a Small Apartment

Water is the supply that runs out first and the one nobody stores, because it is heavy and takes space you do not have. The good news: two weeks of drinking water for two people fits under a bed, and the whole setup costs less than a weekly shop.

Why two weeks, not three days

Three days is the old advice and it comes from short storm outages. Modern city failures — burst mains, contamination notices, pump failures in tall buildings — routinely run longer than that. Two weeks is the point where you stop depending on a queue at a distribution point.

What you need

• Four litres per person per day: two for drinking, two for cooking and hygiene
• Food-grade containers you can actually lift when full — 5 to 10 litres, not 25
• Purification tablets or a filter for water of unknown quality
• One wide-mouth bucket for flushing and washing water

Build the store

1. 01

   Do the maths once. Two people x 4 litres x 14 days = 112 litres. That is roughly twelve 10-litre containers or a stack of shop-bought bottles.

2. 02

   Split it across the flat. Under the bed, at the back of a wardrobe, behind the sofa, on top of the kitchen units. Distributed storage is storage you will actually keep.

3. 03

   Store cool and dark. Heat and sunlight age plastic and grow algae. Never store directly on concrete in a garage — use a board or pallet.

4. 04

   Label and rotate. Write the fill date on tape. Swap tap-filled containers every six months; commercially sealed bottles are good for years.

5. 05

   Add a dirty-water line. Keep the bath fillable and a bucket handy. Toilet flushing and washing can use water you would never drink.

6. 06

   Keep a filter with the store. The moment your stored water runs out, your options are whatever you can find — that only works if you can treat it.

The mistakes that cost people their supply

• Storing everything in one place that becomes unreachable
• Using old milk or juice bottles, which harbour bacteria no rinse removes
• Containers so heavy nobody can carry them upstairs
• Forgetting the water inside the system: a hot water tank holds 100 to 200 litres

Common questions

Can I just fill the bath when something happens? Only if you get a warning. Half of the events that cut water give none at all, and high-rise taps stop within minutes.

Do I need to add bleach? Not for clean tap water rotated on schedule. For anything of unknown origin, use purification tablets to a known dose rather than guessing with household bleach.

Where kit is worth the money

A stack of food-grade containers and a box of purification tablets is a small, one-time investment that removes the single most likely reason a city emergency becomes serious. It is not gear collecting — it is the difference between staying home comfortably and queuing for a bottle.