Sanitation without power: build the emergency toilet before you need it

At a glance

• Power loss can stop sewage systems. EPA lists sewage backup and discharge of untreated sewage among the effects of grid outages at wastewater utilities. A basement ejector pump will not work without a generator (FEMA).
• The standard fix is two 5-gallon buckets: one for pee, unlined; one for poo, lined with a heavy-duty bag and covered with sawdust or similar after each use (Oregon State University Extension).
• Plan on about 1 bag per person per day for bag-based toilets (CDC). A family of four needs about 120 bags for 30 days.
• Hands are the main route for disease. Keep soap, a water container with a spigot, and sanitizer with at least 60% alcohol (CDC).
• Never put human waste in the regular garbage, and follow local agency instructions for disposal (OSU, Portland RDPO).

Why toilets stop working in a long outage

A flush toilet depends on two systems that need electricity: the water supply that refills the tank and the sewer that carries waste away. EPA's power outage checklist for water and wastewater utilities says losing grid power can lead to "pressure losses and boil water advisories," reduced or stopped treatment, "sewage back up and the discharge of untreated sewage." Our water guide covers the supply side.

Inside the house, any fixture below the sewer line drains through a pump. FEMA's flood retrofitting manual notes that a basement ejector pump "will not work unless a backup generator is provided." Homes on septic systems have their own limits: CDC advises septic owners in an emergency to flush toilets as little as possible or use a temporary toilet, and to watch for slow drains, overflowing floor drains or sewage outside the home as signs of failure.

Portland-area emergency managers tell residents they "may need to live without a working toilet for weeks or months" after a major disaster. Oregon State University Extension adds that water and sewer service may be out "for weeks, months or, for some communities, years" after a large earthquake. A grid-down event is a different cause, but the household problem is the same.

The two-bucket toilet

Oregon State University Extension's EM 9334 and the Portland-area Regional Disaster Preparedness Organization (RDPO) both recommend separating urine and feces. The reason is practical. OSU explains that urine "is generally sterile," feces carry pathogens, and urine causes most of the odor in a mixed toilet. Keeping them apart means less smell, fewer full bags and less material that needs careful handling.

Setup checklist

1. 01Get two 5- to 6-gallon buckets with lids. RDPO says any 5 to 6 gallon bucket works. Label one PEE and one POO.
2. 02Leave the pee bucket unlined (OSU).
3. 03Line the poo bucket with a heavy-duty 13-gallon bag. OSU specifies 3 to 5 mil; Portland's sticker says .9 mil or thicker. Thicker is safer when you lift it.
4. 04Put a seat on each bucket. A snap-on toilet seat makes the setup usable for children, older adults and anyone with limited mobility.
5. 05Stock carbon cover material: sawdust, wood shavings, shredded paper, bark chips or peat moss (OSU).
6. 06Set up in a private, ventilated space such as a bathroom, with toilet paper, gloves, spare bags and sanitizer within reach.
7. 07Add a handwashing station next to it. Oregon's 2 Weeks Ready program lists a two-bucket toilet and a handwashing station as separate preparedness activities.

No. 1Sanitation

Reliance Luggable Loo Portable Toilet (5 gallon)

Best for: A real seat on the poo bucket of a two-bucket toilet

• 5-gallon bucket; seat and cover snap on and off
• 220 lb weight capacity; metal handle
• 15.75 × 14.5 × 15 in; 2.96 lb
• Fits Reliance Double Doodie waste bags (manufacturer)

Tradeoffs

• · A bucket with a seat: no tank or seal, so it needs liners and cover material for odor
• · Reliance's own store showed it unavailable on our check; Amazon listed it in stock

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

No. 2Sanitation

Reliance Double Doodie Waste Bags

Best for: Sealed, double-bagged waste for bucket toilets

• 6 bags per package; each holds up to 5 lb of waste
• Inner roll-up waste bag plus outer bag with leak-proof double zip lock
• Puncture resistant; fits the Luggable Loo and most portable toilets (manufacturer)

Tradeoff

• · Six uses per pack: a household of four needs many packs for a long outage

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

Daily use

1. 01After each use of the poo bucket, cover with about half a cup of carbon material (OSU). Toilet paper goes in the poo bucket (Portland RDPO).
2. 02Keep lids on both buckets between uses.
3. 03Empty the pee bucket when it is about a quarter full. OSU says to dilute it and pour it on the ground, changing spots each time, and not within 100 feet of a water source.
4. 04Change the poo bag when the bucket is no more than half full (OSU). Wear gloves, tie the bag, double-bag it and seal it.
5. 05Wash or sanitize hands every time, including after handling bags.

How much to store for 30 days

CDC's emergency sanitation guidance estimates that bag toilets need about one bag per person per day plus a disposal site. Using that as a conservative planning number gives the table below. Cover material assumes one poo-bucket use per person per day at half a cup each; that frequency is our planning assumption, not an agency figure, so round up.

Purpose-made bags such as Reliance Double Doodie come six to a pack, so a month for four people would take about 20 packs. Most households will use rolls of heavy-duty contractor or trash bags as the main supply and keep a few purpose-made bags for travel or a second toilet.

Full supply checklist

• Two 5-gallon buckets with lids and snap-on seats (more for six or more people)
• Heavy-duty 13-gallon bags, quantity from the table, plus extra for double-bagging
• Carbon cover material: sawdust, wood shavings, bark chips, peat moss or shredded paper
• Disposable gloves, at least two per bag change
• Toilet paper, moist towelettes, garbage bags and plastic ties (Ready.gov kit list)
• Hand sanitizer with at least 60% alcohol (CDC)
• Bar or liquid soap and a water container with a spigot for handwashing
• A lidded, sturdy outdoor container or shed space for sealed waste bags
• Bleach or disinfectant for cleaning surfaces, stored away from food

Water storage

Reliance Jumbo-Tainer 2.0, 7 Gallon (08630-03)

Best for: Rigid, refillable storage you can rotate

• 7 gal / 26 L
• 15.3 × 8.5 × 18.0 in; 2.9 lb empty
• Food safe: LFGB certified and FDA compliant
• PFAS- and BPA-free
• Leak-proof hideaway spigot; dual handles

Tradeoffs

• · Reliance does not list it as stackable
• · About 58 lb when full (7 gal × ~8.3 lb plus container)

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

Handwashing when the tap is off

CDC says to wash hands with soap and safe water before preparing food or eating, and after using the toilet or changing diapers. When soap and water are not available, use a hand sanitizer with at least 60% alcohol and rub until dry, about 20 seconds. CDC also notes that sanitizer does not kill all germs and works less well on visibly dirty or greasy hands, so soap and water remain the first choice.

A rigid water container with a spigot set on a counter or stool, a bar of soap and a catch bucket underneath makes a working handwashing station. Use stored water you have budgeted for it: the usual one gallon per person per day guideline covers drinking and sanitation together (Ready.gov). For a month or more, a large tank holds the volume a household needs; see the water guide for treatment and rotation.

Water storage

WaterPrepared Blue 55 Gallon Water Storage Tank

Best for: Storing a month or more of household water in one footprint

• 55 gallons; 22 × 28 × 30 in
• HDPE, BPA free, FDA/NSF approved, UV-resistant blend (manufacturer)
• Built-in spigots that fit a standard garden hose, plus utility valves
• Large fill cap; stackable

Tradeoffs

• · About 460 lb when full (55 gal × ~8.3 lb, our arithmetic), so fill it where it will stay
• · No pump or water treatment included in this listing

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026

CDC also advises bathing and doing laundry at least 100 feet from drinking water sources, and never defecating in any body of water.

Storing and disposing of waste

• Do not put human waste in the regular garbage (OSU). Sealed bags go in a separate lidded container.
• Store sealed bags away from food, water, pets and pests (OSU). Flies and rodents carry germs from waste to food and water.
• Do not bury waste within 100 feet of a water source (OSU).
• Watch for official instructions. Portland's guidance is to "watch for instructions from public agencies on how to get rid of waste."
• Never dump waste or bags into storm drains or open water.

When the regular toilet is still an option

In a short outage with the sewer working, many homes keep using toilets normally. The bucket system is for when sewer service is in doubt. Toilets flush by gravity, so a household with stored water can sometimes flush by pouring water into the bowl, but only when you know your home's lines and the public sewer are intact and authorities have not told residents to stop. On a septic system, flush as little as possible (CDC). After an earthquake, OSU advises avoiding toilets even when home sewer lines look undamaged, because street pipes may be broken.

What we don't know

• How long your local sewer system can run without grid power. Backup power at water and wastewater utilities varies, and EPA notes it is not required by the Safe Drinking Water Act or Clean Water Act. Ask your utility.
• The right bag thickness. OSU and Portland's sticker give different minimums. We list both and suggest erring thicker.
• How your county will collect waste after a long outage. Plans differ by area, so check your local emergency management office now.

Next: add sanitation to your 30-day plan and 90-day plan, print the blackout checklist, and stock the first aid and medical chapter of the Blackout Kit.

First aid and medical

American Red Cross (made by First Aid Only) Deluxe All Purpose First Aid Kit, 299 pieces

Best for: An all-purpose home kit

• 299 pieces in a soft zippered case with clear pockets; 1.3 lb
• 75 plastic bandages, 50 junior bandages, 5"×9" trauma pad
• Alcohol pads, BZK antiseptic towelettes, antibiotic ointment packs
• Aspirin, non-aspirin pain reliever and ibuprofen packets
• Thermometer, emergency blanket, cold compress, scissors, tweezers, nitrile gloves, Red Cross First Aid Guide

Tradeoffs

• · Mostly small-wound supplies; only one trauma pad
• · No CPR face shield listed

Check price on AmazonRead the full reviewSpecs: manufacturer page, checked Nov 1, 2026