When the Toilet Stops Working: A Household Sanitation Decision Plan
Identify whether a water or wastewater problem affects flushing, follow local utility instructions, and know when to stop using a toilet or leave the area.
When the water stops, the toilet may still flush for a while; when power fails, a building pump or lift station may stop even if the taps still run. Those are different situations. Identify which service is affected before choosing what the household does next.
Keep the service contacts below with the Power Outage Home Resilience Manual. The first decision here is which water or wastewater service has failed and who can confirm an appropriate toilet option.
Separate water availability from wastewater service
Use local utility notices, building management, or the health department to determine whether water is safe to drink, whether it may be used for flushing, and whether wastewater service is affected. A drinking-water advisory does not by itself answer whether wastewater fixtures can be used. Read the exact advisory and check separately for wastewater or building instructions before flushing.
| What you know | Household decision |
|---|---|
| Water is unavailable or under an advisory, but there is no wastewater notice or backup | Follow the exact water advisory. Ask the utility or building manager whether toilet flushing is allowed and how to conserve water. |
| Apartment or building toilets depend on a powered pump or shared system | Ask building management whether the pump is operating and what residents should stop using. Do not inspect or operate shared equipment. |
| Septic system is flooded, very wet, or showing slow drains, overflow, or sewage outside | Reduce water use and flushing, avoid the affected area, and contact the local health department or qualified septic professional. CDC advises inspection when damage is suspected. |
| Sewage backs up into a fixture, floor drain, or living area | Stop using affected fixtures, keep people away, avoid contact, and follow local public-health and utility instructions. Do not clean or pump it based on this article. |
| Floodwater reaches a well, septic system, or wastewater equipment | Avoid contact and follow local instructions for water safety and professional inspection. Do not assume a toilet, tap, or system is safe because it appears to work. |
CDC’s current septic and onsite wastewater guidance recommends reducing toilet flushing and other water use during emergencies, and using a temporary toilet if needed. It lists slow drains, overflowing floor drains, and visible sewage outside as possible failure signs. That guidance does not automatically determine what to do with every municipal sewer or shared building pump.
Set a clear stop point
Stop using an affected toilet and contact the responsible service when sewage is visible, drains slow or reverse, a floor drain overflows, a local notice says to stop, or building management reports a pump or sewer failure. For a septic property, CDC lists slow sinks or toilets and visible sewage outside among signs of a problem. Do not use another fixture to “test” whether it will drain.
Keep children, pets, and household members who need assistance away from sewage or floodwater; CDC warns that sewage-contaminated floodwater can make people sick. If immediate danger, a medical emergency, or a hazardous release is present, call emergency services. For a non-immediate service issue, use the number on the utility bill, lease/building emergency card, or county health department website.
Choose an approved alternative before you need it
Use this contact path to get a current instruction for the system that serves the home:
- Check official alerts first. Look at the water utility, wastewater utility or city public-works notice, local health department, and emergency-management updates. A water advisory and a sewer notice answer different questions.
- Contact the person responsible for the system. For an apartment or shared pump, call building management or the after-hours number. For municipal service, contact the wastewater utility or public works. For septic or onsite wastewater, contact the county health department or the local onsite-wastewater regulator; use a qualified septic professional when the authority recommends it.
- Ask for a named temporary option. Confirm whether an identified public restroom, shelter, accessible facility, or serviced portable toilet is open and appropriate for the household. Ask how to reach it, when it closes, whether transport or assistance is available, and when service is expected to resume. Do not assume a nearby toilet is operating because water is available.
- If using an agency-approved temporary unit, get its instructions. Confirm who supplies, services, collects, and disposes of waste, and what materials may be used. CDC’s septic guidance advises a temporary toilet when septic service is affected, but it does not prescribe a universal household setup.
- Plan hand hygiene at the same time. Keep soap and safe handwashing water available. If clean tap water is unavailable, CDC’s emergency hygiene guidance describes an emergency handwashing station; sanitizer with at least 60% alcohol is a fallback when soap and water are unavailable, but it is less effective on visibly dirty hands.
The archived CDC emergency sanitation discussion explains why collection, servicing, and disposal capacity constrain temporary systems. It discusses community response settings and does not approve a household disposal route. Do not mix cleaners, add chemicals, bury waste, use a storm drain, or discharge waste to a yard or street based on a generic online recipe. If officials have not identified an approved method or facility, contact the local health department or emergency manager before handling or storing waste.
Service map
| Record | Household entry |
|---|---|
| Water source and water-advisory page / phone | |
| Wastewater type: municipal, septic, shared pump, or unknown | |
| Wastewater utility / public works contact | |
| Building manager or after-hours contact | |
| County health department / emergency manager contact | |
| Approved accessible alternate toilet and hours | |
| Transport or assistance needed to reach the alternate | |
| Approved temporary-unit service and waste-collection instructions | |
| Stop-use signs and where to report them |
Keep soap and safe handwashing water with the household’s sanitation supplies; add alcohol-based sanitizer as a backup when a sink is unavailable. If the plan includes a temporary unit, keep its specified supplies with the confirmed service and waste-collection instructions. Store contact details privately, then review the plan with anyone who may need to act if the primary contact is away.
