First 5 minutes: what to do
- Stop using water. Every flush, shower or load of laundry sends more water into a system that can't take it. Tell everyone in the house.
- Keep people and pets away from sewage indoors and out. Wastewater carries bacteria and viruses.
- Don't try to clean up sewage without protection. Wear gloves and boots, and wash thoroughly afterwards. For a large indoor spill, consider a restoration company.
- Turn off the dishwasher and washing machine so they don't start an automatic cycle.
- If you have a septic pump, check the breaker. Reset it once if it's tripped. If it trips again, leave it off.
- Don't open the tank. Septic gases can be dangerous, and lids can be heavy and unsafe.
- Call our local line or send the quick quote form and mark it urgent.
Common septic emergencies
Sewage backing up into the house
Usually shows first in the lowest drains: basement floor drains, showers or toilets. Causes include a full tank, a blocked pipe between the house and tank, a failed pump or a failed drain field.
Septic alarm sounding
On pump systems, an alarm means liquid is rising too high. See our septic alarm page for what to do.
Sewage surfacing in the yard
Wet, smelly ground or visible effluent over the tank or field usually points to a full tank, a blocked outlet or a failing drain field.
Strong sewage smell indoors
Can mean a dried-out trap, a vent problem or a backup starting. If it comes with slow drains, act fast.
Damaged or collapsed lid
A broken septic lid is a serious fall hazard. Keep everyone away, cover the area with something solid if it's safe to do so, and call right away.
Pump-out or repair?
In many emergencies, the first step is pumping the tank or chamber. That buys time and lets the problem be found safely. The pro then works out the cause:
- Overdue tank → pump-out, then back to normal
- Blocked pipe → clear the line
- Failed pump or float → replace the part
- Drain field failure → assess repair or replacement options
Ask for a clear explanation of the cause and a quote before any repair work beyond the emergency pump-out.
After hours and weekends
Septic problems don't keep office hours. Availability for evening and weekend calls depends on the provider and the day. Call our local line and we'll do our best to connect you with someone who can come out. Emergency and after-hours visits typically cost more than booked visits.
Avoid the next emergency
Most septic emergencies are preventable:
- Pump on schedule, typically every 2 to 5 years per HealthLinkBC
- Fix leaks and spread out laundry
- Keep grease, wipes and paper towels out of the drains
- Install risers so the tank can be reached quickly. The RDN's SepticSmart rebate has covered part of the cost for qualifying properties.
- Test your alarm if you have one
- Keep records of pump-outs and repairs
Emergency septic FAQ
Can I use my toilet during a septic backup? Avoid it. Every flush adds water. Use it only if absolutely necessary.
Is a septic backup covered by home insurance? It depends on your policy. Call your insurer and take photos before cleanup.
How fast can someone come out? It depends on the time, day and location. Gabriola Island calls also depend on the ferry. Call as early as you can.
Is septic water dangerous? Yes. It can carry harmful bacteria and viruses. Avoid contact and keep kids and pets away.
What to tell us when you call
The more we know, the faster the right help gets to you:
- Your area: Nanaimo, Cedar, Lantzville, Gabriola, Nanoose Bay, Extension or Wellington
- What's happening: backup inside, surfacing outside, alarm, smell, damaged lid
- Where it's showing up: which drains, which part of the yard
- When it started and whether it's getting worse
- Whether your system has a pump and alarm
- When the tank was last pumped, if you know
- Access: can a truck get close to the tank?
Cleaning up safely after a backup
Once the septic problem is under control:
- Wear gloves, boots and eye protection.
- Remove soaked porous items like carpets, rugs and cardboard. They're hard to disinfect.
- Clean hard surfaces with soap and water, then disinfect.
- Ventilate the area well.
- Wash hands and clothes thoroughly afterwards.
- For large indoor backups, call a professional restoration company and your insurer.
Keep children and pets out of affected areas until cleanup is complete.
Warning signs that come before an emergency
Most septic emergencies give some warning first. If you notice any of these, call before it turns into a backup:
- Every drain in the house is slow, not just one sink
- Toilets gurgle or bubble when other fixtures drain
- A faint sewage smell comes and goes indoors or in the yard
- Patches of soggy ground or very green grass appear over the tank or field
- The alarm sounds briefly and then clears on its own
- It's been years since the tank was pumped, or you don't know when
Booking a pump-out or inspection at the first sign is almost always faster, easier and cheaper than an emergency call.
Get emergency septic help
Call our local line now or send the quick quote form and mark it urgent. Tell us your area and what's happening.