Most septic problems start small
Septic systems are simple, but they have parts that wear out. When one part fails, it puts stress on everything downstream. Fix it early and it's usually a modest repair. Ignore it and the damage spreads, often all the way to the drain field.
If you're seeing slow drains, smells, gurgling, an alarm, or soggy ground, don't wait. Call our local line.
Common septic repairs
Broken or missing baffles
Baffles (or tees) sit at the inlet and outlet of the tank. They keep scum and sludge inside the tank so only liquid flows to the field. Concrete baffles can crumble over time. A missing outlet baffle lets solids escape to the field, which is how many fields fail early.
Cracked or unsafe lids
Old concrete lids crack. Some are buried and hard to find. A damaged lid lets in rainwater and can be a serious safety hazard. Replacement lids and risers bring access up to ground level, making every future pump-out easier.
Effluent filters
Many systems have, or should have, a filter at the tank outlet that catches solids before they reach the field. Filters need cleaning. Adding one to an older system is a smart, affordable upgrade.
Pumps, floats and alarms
Systems with a pump chamber rely on a pump, float switches and an alarm. Pumps wear out, floats stick, and alarms fail silently. If your alarm is going off, see our septic alarm page.
Broken or blocked pipes
Pipes between the house and tank, or the tank and field, can crack, separate, sag or fill with roots. Symptoms are often backups or slow drains even after pumping.
Distribution box problems
The distribution box (D-box) splits effluent between drain field lines. If it shifts or settles, one part of the field can get overloaded while the rest sits dry.
Drain field issues
Field problems are their own category. See drain field repair.
Repair or replace?
Most problems can be repaired. Replacement is usually only needed when the drain field itself has failed, or the tank is badly damaged or far too small for the home.
A good septic pro will tell you which you're dealing with and why. Ask for an explanation you can understand, and get it in writing.
Who can do septic repairs in BC?
BC's Sewerage System Regulation requires that work on onsite sewage systems be done by an authorized person: a Registered Onsite Wastewater Practitioner (ROWP) or a professional engineer. Larger repairs and alterations also have to be filed with the regional health authority, which is Island Health here.
That protects you. Unregistered work can cause problems when you sell, and poorly done repairs can fail fast.
Rebates that can lower the cost
The Regional District of Nanaimo's SepticSmart rebate has covered 75% of eligible costs for certain upgrades on qualifying RDN properties when done by an authorized person, up to set limits:
- Effluent filter installation: up to $100
- Distribution box installation or replacement: up to $200
- Riser installation: up to $400
- Repair or replacement of an aging system (work over $10,000): $700
The program requires pre-approval before work starts, and the details change year to year. Check the RDN's current rules before booking.
Septic repair FAQ
How do I know if I need a repair or just a pump-out? If problems continue after a recent pump-out, something else is wrong. Book an inspection or repair visit.
Can I keep using my system while I wait for a repair? Cut water use as much as you can: spread out laundry, take short showers, and fix leaks. If sewage is backing up into the house, stop using water and call our local line.
Do septic repairs need a permit? Some do. Repairs and alterations to a system generally need to be filed with Island Health by an authorized person. Your septic pro handles this.
How long do repairs take? Simple jobs like a filter, lid or baffle are often done in one visit. Bigger jobs may need parts, planning and filing first.
Will the repair be guaranteed? Ask your provider about warranties on parts and workmanship before work starts.
What affects repair costs
Every repair is different, but these factors drive the price:
- The part. A filter or lid is a small job. A new pump, a replaced tank or a field repair is much bigger.
- Access and digging. Buried components mean excavation. Tight spaces, landscaping and driveways add time.
- Pumping first. Many repairs need the tank or chamber pumped before work can start.
- Design and filing. Larger repairs and alterations need an authorized person to plan and file the work with Island Health.
- Urgency. After-hours and emergency work usually costs more than a booked visit.
- Location. Gabriola work involves ferry travel.
Ask for a written quote that lists the parts, labour, pumping, digging and any filing fees before work starts.
How to choose a septic repair provider
- Ask about registration. Septic work in BC should be done by an authorized person, typically a ROWP.
- Ask for the diagnosis in plain language. What failed, why, and what happens if you wait.
- Get the quote in writing, with what's included.
- Ask about warranties on parts and workmanship.
- Ask what you can do to prevent it happening again.
A good provider will be happy to answer all of these. That's who we connect you with.
Get your septic system fixed
Call our local line or send the quick quote form. Describe what's happening, and a registered local septic pro will get back to you with next steps and a quote.