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Morning after Hurricane Irma knocked out power across most of Orlando. I walked outside to check on damage and saw my neighbor Linda standing in her backyard filling cooking pots from her swimming pool.
Her swimming pool. For drinking.
Pool water. With chlorine, stabilizer, whatever dead stuff blew in during a Category 4 hurricane. She was going to boil it.
Gave her three gallons from my stash and tried really hard not to be preachy about it. Failed, probably. But that image — a grown woman scooping pool water into a stock pot while her two kids watched from the patio door — that’s stuck with me for years now. Linda wasn’t careless. She’d actually bought water. A case of twenty-four bottles from Walmart. That’s about three gallons total. For THREE people.
Three gallons.
We ended up without power for nine days. Three gallons wouldn’t have gotten Linda’s family through day two.
One Gallon Per Person Per Day Is the Bare Minimum
FEMA’s recommendation of one gallon per person per day assumes minimal physical activity and cool temperatures. In a hot climate or if you’re doing any physical work, plan for 1.5 gallons per person per day. A family of four in a summer outage needs at least 40 gallons for a week — not 28.
Storing water is one of those things where the gap between what people think they need and what they actually need is massive. And the container matters more than most people realize. Stored water in containers that leached plastic chemicals into it, let stored water go rotten because I forgot to rotate it, and once had a cheap jug crack in the July garage heat and dump ten gallons onto my table saw. That was a fun afternoon. (It was not a fun afternoon.)
Here’s what I’ve figured out. Through trial and error. Mostly error.
How Much Water Do You Actually Need?
FEMA says one gallon per person per day. Drinking, cooking, basic hygiene. Family of four for one week? Twenty-eight gallons.
I think FEMA’s number is low. During that nine-day outage after Irma, we went through closer to a gallon and a half per person per day. Partly because it was September in Florida and everyone was sweating through their clothes. Partly because you use more water than you’d think when you can’t just turn on the faucet. Washing hands, rinsing dishes, brushing teeth — it adds up faster than the math suggests.
My rule: 1.5 gallons per person per day. Then add extra for pets, cooking, and a buffer for the stuff you didn’t think of. For my family of four plus a dog, I keep about 50 gallons stored at all times. Use our water storage calculator to figure out your specific number — it factors in climate, pets, household size, all of it.
The Containers I’ve Actually Used
Store-Bought Gallon Jugs — Fine for Starting. Bad for Staying.
A dollar each at Walmart or Costco. This is where everybody starts. Fine. No shame in that.
I kept twelve of these in my garage for about two years. Here’s what happened. The thin plastic degraded in the Florida heat — my garage hit 110 degrees in July and those jugs basically slow-cooked on the shelf. Two developed pinhole leaks. Found puddles one morning and couldn’t figure out where they came from for like an hour. The water tasted like I was drinking a Tupperware container by month eight. And twelve jugs took up a surprising amount of floor space for only twelve gallons.
Better than nothing? Absolutely. If you’ve got zero water storage right now, go buy a case this weekend. I’m serious. Today. But know that it’s a starting point, not a solution.
Takeaway: Gets you started. Not a long-term play. Swap them out every six months and keep them out of heat and sunlight.
5-Gallon Stackable Containers — My Workhorses
These are the backbone of my whole system. Scepter 5-gallon containers — the same style the military uses. Paid $18 to $22 each. I own six. That’s 30 gallons right there, and they stack three high against a wall in my basement without eating much floor space.
Why I love them. They’re built like tanks. HDPE plastic — food-grade, BPA-free, UV-resistant. I’ve had the same six for four years. Zero issues. No leaks. No plastic taste. No degradation. The screw caps seal tight. And at about 42 pounds full, one person can carry them. That part matters more than you’d think — during Irma I had to move my water supply from the garage to the main floor because I was worried about flooding. Carrying 42-pound jugs up four steps? Doable. Awkward but doable. Carrying a 55-gallon barrel? Not happening. Not without a forklift and two friends who don’t owe you favors anymore.
One complaint: no built-in spigots. So you’re either pouring from a 42-pound jug (awkward as all get-out) or buying a separate spigot attachment for about $8. I bought the spigots. Worth it. Should’ve come with them.
Water gets rotated every six months. Dump. Clean with a dilute bleach solution. Refill. Date with a Sharpie. Takes about an hour for all six. Could I use water preserver drops and stretch it to five years? Yeah. But the rotation habit gives me an excuse to inspect the containers and it’s just how I do things now.
Takeaway: Best all-around option for most people. Portable, durable, stackable, reasonably priced. This is what I tell everyone who asks.
Add a Spigot Adapter to Your 5-Gallon Containers
Pouring from a 42-pound jug is awkward and risks spills. An inline spigot adapter costs about $8 and threads directly onto Scepter containers. Stand the jug on a shelf edge, attach the spigot, and you can fill cups without lifting anything. It’s a small purchase that removes a daily frustration.
7-Gallon Aqua-Tainer by Reliance — The Popular Choice
These get recommended everywhere. The blue Aqua-Tainer. Seven gallons. About $15 to $20 at most outdoor stores. I owned two of them for about a year.
They’re… okay.
The built-in spigot is convenient — folds into the cap when not in use. Size is reasonable. Price is right. Fine.
But I had issues. The plastic felt thinner than my Scepter containers. One of mine developed a slow leak at the seam after about eight months. Not catastrophic — more like a slow weep that left a puddle underneath over a few weeks. Maybe I got a bad one. Maybe not. When I held it next to a Scepter jug, the difference in plastic thickness was obvious. That bothered me.
Also at 58 pounds full, seven gallons is getting into “awkward to carry” territory. My wife couldn’t comfortably lift one. So portability takes a hit compared to the 5-gallon option. That matters during an emergency when everyone in the house needs to be able to move supplies.
Worth it? Decent budget option. Built-in spigot is nice. But I switched to Scepter containers for the durability and haven’t looked back.
55-Gallon Barrel — The Big One
If you’ve got space and don’t need to move your water, a 55-gallon food-grade drum is hard to beat for sheer volume. I keep one in my basement. Bought it from a local food distribution company for $30 — they were getting rid of surplus. New food-grade drums run $60 to $80 online.
Fifty-five gallons. One container. At my planning rate, that’s about nine days of water for a family of four. Combined with my six 5-gallon containers, I’ve got roughly 85 gallons total. Over two weeks for four people. That feels like enough for anything short of a genuine long-term collapse scenario. And if we’re in a genuine long-term collapse scenario, I’ve got bigger problems than water storage.
The drum sits on a wooden platform I built to keep it off the concrete floor. (Concrete can leach chemicals into plastic over time — something a lot of people don’t think about.) Added a siphon pump for $12 because there’s no good way to pour from a 450-pound barrel. The pump works great. Couple of pumps, you’ve got a gallon. Simple.
Water preserver concentrate goes in when I fill it. One bottle treats 55 gallons for five years. FIVE YEARS without rotating. That’s the appeal — set it, treat it, label it with a date, and forget about it until you either need it or the five-year mark comes around.
Downsides? You are not moving this thing. Ever. Not when it’s full. If you need to evacuate, your 55 gallons are staying behind. And getting it into the basement was an adventure I do not want to repeat. My friend Greg and I spent twenty minutes wrestling it down the stairs. Creative language was used. My wife left the house.
Never Store Water Barrels Directly on Concrete
Concrete floors release trace chemicals over time that can leach into plastic containers sitting on them — especially in temperature extremes. Build a simple wooden pallet or use a rubber mat to keep your barrel off the floor. This is particularly important in garages, which see the most temperature swings.
Worth it? Best option for shelter-in-place if you have the space. Not portable. Great value per gallon.
WaterBOB Bathtub Bladder — The Hurricane Hero
Bought this specifically for hurricane season and I’ll be honest — it’s kind of genius. A food-grade bladder that fills your bathtub with 100 gallons of clean water. You fill it from the faucet before the storm hits. Has a siphon pump built in. Takes about 20 minutes to fill. Costs about $35.
Used one during Irma and it was, no exaggeration, one of the best $35 I’ve ever spent in my life. A hundred gallons of clean sealed water sitting in my bathtub while the power was out for nine days. We used it for drinking (treated it first), cooking, and flushing toilets. Still had water left when the power came back. STILL HAD WATER LEFT. After nine days.
Why is it better than just filling the tub? Because an open bathtub collects dust, hair, dead bugs, whatever falls in. The water sits against the tub surface which might have soap residue or cleaning chemical remnants. The WaterBOB keeps it sealed and clean. Big difference.
It’s single-use, which bugs me on principle. After you drain it, you throw it away. At $35 I don’t love the waste. But for the insurance it provides during hurricane season? I buy a new one every June. Thirty-five dollars for 100 gallons of peace of mind. That’s $0.35 per gallon of not being Linda filling stock pots from her pool.
My advice: If you live in hurricane country, buy one. Buy it before season. Fill it when a storm is forecast. Probably the highest-impact, lowest-cost water storage move I own.
Collapsible Water Containers — For the Go-Bag
I keep two collapsible 2.5-gallon containers in my bug out bag. They fold flat when empty — maybe an inch thick — and expand to hold five gallons total between the two.
Not for long-term storage. The material is thinner. They won’t survive years in a hot garage. But for an evacuation scenario where you need to carry water or collect it from a source on the move? Perfect. Weight when empty: about three ounces each. Basically nothing.
I use the Sea to Summit Watercell X. About $20 for the 2.5-gallon size. Material is tough for its weight, the cap is reliable, and they pack flat. Had mine two years with no issues.
My advice: Not primary storage. But excellent for bug out bags, vehicle kits, or supplemental capacity when things go sideways.
Keeping Stored Water Safe
Storing water is half the equation. Making sure it’s still safe to drink six months or two years later is the other half.
Municipal tap water comes chlorinated, which gives it some built-in protection. Fill containers from the tap? Your water is probably fine for six months without doing anything else. After that, the chlorine dissipates and bacteria can start growing. That’s when it gets sketchy.
For longer storage, two options:
The first option is plain unscented household bleach — 8.25% sodium hypochlorite, quarter teaspoon per gallon. Mix it in, let it sit 30 minutes, and the water should smell faintly of chlorine when you sniff the container. If it doesn’t, add another quarter teaspoon and wait again. I use this for my 5-gallon containers. It’s cheap and it works. Just make sure it’s genuinely plain bleach — no “fresh scent,” no “splash-proof formula,” nothing fancy. Just bleach.
Use Only Plain Unscented Bleach for Water Treatment
When treating stored water with bleach, use only plain unscented household bleach with 8.25% sodium hypochlorite — nothing else. “Scented” bleach, “splash-proof” formulas, and color-safe bleaches contain additives that are not safe to drink. The label should list only sodium hypochlorite as the active ingredient.
Water preserver concentrate. Made specifically for long-term water storage. One bottle treats 55 gallons for five years. I use this for my big barrel because rotating 55 gallons every six months sounds like a punishment. Costs about $10 to $15 per treatment. Worth every cent for the convenience.
Either way — cool, dark storage location. Heat and sunlight degrade both the water quality and the plastic. My basement stays around 60 to 65 degrees year-round. Perfect.
Want the full breakdown on purification methods — including what to do when your stored water runs out and you need to find water in the wild — check out our guide to water purification methods.
My Complete Setup (And What It Cost)
Here’s exactly what I have. Every container. Every accessory. Rough costs:
- 6x Scepter 5-gallon containers = ~$120
- 1x 55-gallon barrel with pump = ~$45
- 1x WaterBOB (replaced annually) = $35
- 2x Sea to Summit collapsible containers = $40
- Water preserver + bleach = ~$15
- Spigot attachments = ~$50
Total: about $305 for a system that holds 135+ gallons (with the WaterBOB filled). That’s over three weeks of water for my family. Built it up over a couple years — you absolutely do not need to buy everything at once. Start with two or three Scepter jugs and go from there.
Frequently Asked Questions
Can I store water in old milk jugs? I wouldn’t. Milk proteins are almost impossible to fully clean out. They become a breeding ground for bacteria no matter how much you scrub. Old juice or soda bottles are better — PET plastic is easier to sanitize. But purpose-built containers are the way to go if you can swing the cost. A $20 Scepter jug is going to last you years. A rinsed-out milk jug is going to smell weird by month two.
How long can I store water? Commercially bottled water is good for at least two years. Tap water in clean food-grade containers with bleach treatment — six to twelve months. With water preserver concentrate — up to five years. The water doesn’t technically “expire” in sealed containers, but taste degrades and bacterial growth risk goes up over time.
Should I store water in the garage? Avoid it if you can. Garages get hot. Mine in Florida hit 110 degrees in July. That’s bad for the plastic and bad for the water. Basement or interior closet is ideal. If the garage is your only option, at least keep containers off the floor and away from direct sunlight.
What about those big IBC totes I see for sale? The 275-gallon intermediate bulk containers? I’ve seen people use them. They work IF you can confirm they’re food-grade and haven’t previously held chemicals. Problem is, a lot of them come from industrial use and you can’t always verify what was stored in them before. Confirmed food-grade provenance? Great deal per gallon. Can’t confirm it? Skip it. Not worth the risk.
For a complete picture of emergency water planning, use our water storage calculator and read the complete guide to emergency preparedness for how water fits into your overall plan.