Water Storage 101: How Much You Really Need & Smart Ways to Store It Safely
If there’s one thing we simply can’t live without, it’s water. You can last weeks without food, but only a few days without clean drinking water. That’s why emergency water storage is one of the first and most vital steps in any preparedness plan. Whether you’re prepping for a natural disaster, grid outage, or simply want to sleep better knowing your family is covered, this is where to start.
In this post, I’ll walk through:
- How much water you need (for people and pets)
- Seasonal considerations
- Storage options (big and small)
- How to keep water clean and safe long-term
- Recommended Amazon products that make the job easier
Why You Need to Store Water
Emergencies can happen without warning: blizzards, floods, hurricanes, earthquakes, or even temporary power or water outages. And while food gets a lot of attention in the prepping world, water should be your first line of defense.
Just ask anyone who’s experienced a boil notice or had the tap run dry for more than 12 hours. It’s not fun. And if you’ve got kids, pets, or elderly family members, that discomfort can turn dangerous fast.
How Much Water Should You Store?
The general recommendation is 1 gallon of water per person, per day for drinking and minimal hygiene.
But let’s break that down.
Minimum Water Needs for a Family of Four:
- 1 gallon x 4 people x 7 days = 28 gallons per week
That’s just drinking and light hygiene. If you’re cooking, washing up a bit, or dealing with hot weather? You’ll need more.
Realistic Goal:
- 2 gallons per person, per day is ideal for better comfort and safety.
- That’s 56 gallons for a family of four for a week.
Don’t Forget the Pets
Your pets need water too. The average dog needs about 1 ounce of water per pound per day. That means:
- A 50 lb dog = ~50 ounces (~0.4 gallons/day)
- A 10 lb cat = ~10 ounces (~0.08 gallons/day)
So if you’ve got pets, include them in your planning. Add:
- ½ gallon per large dog per day
- ¼ gallon per small dog or cat per day
Seasonal Considerations
Winter:
- Pipes can freeze.
- Water sources may be harder to access.
- Keep indoor storage easily accessible.
- If storing outside, ensure water won’t freeze and crack containers.
Summer:
- Higher heat = more water loss through sweat.
- Children and elderly dehydrate faster.
- You may need more for bathing, cooling off, or treating heat-related issues.
Always aim for at least 2 week’s worth of water if you live in areas prone to seasonal weather disruptions.
Best Ways to Store Water
Store-Bought Bottled Water
Pros: Easy, portable, comes sealed
Cons: More expensive, short shelf life (~1–2 years)
Tip: Rotate every 6 months for best taste.
5–7 Gallon Water Jugs
Great for short-term use or rotating fresh water regularly. Look for BPA-free, food-grade plastic.
Reliance Aqua-Tainer 7 Gallon Water Container
Scepter 5 Gallon Military Grade Water Can
55-Gallon Water Barrels (Long-Term Storage)
Perfect for larger families or serious prepping. Requires a siphon pump and stabilizer.
🛒 Augason Farms 55-Gallon Water Storage Kit – Includes barrel, pump, and water treatment.
Store barrels in a cool, dark area like a garage or shed, off the ground on pallets or bricks.
Stackable Water Bricks
A modular option that’s easier to move than large barrels.
🛒 WaterBrick Stackable Water Container, 3.5 Gallon
They fit under beds, in closets, or even stacked in the garage.
Bathtub Water Storage (Emergency Use)
If you know a storm or disaster is coming, fill your tub with clean water.
🛒 WaterBOB Emergency Drinking Water Storage in Bathtub (100 Gallons)
Great backup when there’s little time to prepare.
Keeping Water Safe to Drink
Stored water doesn’t stay safe forever. Here’s how to ensure it stays fresh:
Use Water Preservers
If you’re storing tap water, add a stabilizer like this:
Aquatabs 100 Pack – Water Purification Tablets
Water Preserver Concentrate – Treats 55 Gallons
Treat and seal your water tightly for up to 5 years of storage.
Rotate Regularly
If you don’t use a stabilizer, rotate stored water every 6–12 months. Mark the date on the container.
Keep It Clean
Only use food-grade containers. Never store water in containers that held chemicals or milk.
Where to Store Water
- Cool, dark places are ideal (closets, under beds, basements).
- Avoid direct sunlight, which can degrade plastic.
- Don’t store directly on cement—use wood or plastic pallets.
- Spread storage throughout the house: under beds, closets, laundry rooms.
Extra Emergency Water Options
Water Filters & Purifiers
If your storage runs out or you need to use pond/river water:
LifeStraw Personal Water Filter
Sawyer Mini Water Filtration System
Great for bug-out or get-home bags or backup plans.
Rainwater Collection
Rain barrels are a great off-grid option (check local laws first). You’ll need to purify it for drinking.
Water Storage for Emergencies
- Label everything with the date of storage.
- Teach family members how to access and treat water.
- Keep a manual pump or siphon with larger storage options.
- Don’t forget extra water for washing, cleaning wounds, brushing teeth, etc.
- During an emergency, ration wisely but don’t under-hydrate—dehydration causes fatigue, poor decision-making, and worsens illness.
Water Storage Checklist
✅ 1–2 gallons of water per person, per day
✅ Add ½ gallon per large pet, ¼ gallon per small pet
✅ Store at least 1–2 weeks’ worth
✅ Choose containers: bottles, jugs, bricks, or barrels
✅ Keep it safe: use clean, food-grade containers + purification
✅ Consider filters and rain barrels for backup
✅ Rotate stored water or treat for long-term storage
✅ Store in cool, dark, off-the-ground locations
Don’t Wait Until It’s Too Late
Water isn’t just important, it’s critical. Whether you’re a seasoned prepper or just starting to build your emergency supplies, water storage should be at the top of your list.
You don’t need to buy it all at once. Start small—fill a few 5-gallon containers, stash bottled water under the bed, or invest in a rain barrel. A little preparation now could be life-saving later.
