A sump pump is one of those things you forget about until the night it fails. In many Toronto and GTA homes it quietly does an important job: collecting water from the weeping tiles around your foundation and pumping it out and away from the house. When heavy rain or a fast spring thaw hits, a pump that’s stuck, clogged or unplugged can mean a wet basement within hours.
The good news is that keeping a sump pump in shape takes very little time. Here’s a practical checklist you can follow a few times a year.
How a Sump Pump Works
Water from around your foundation drains into a pit, called the sump, usually in a corner of the basement floor. As the water rises, it lifts a float switch, which turns the pump on. The pump pushes water up through a discharge pipe and outside. A check valve on that pipe stops the water from flowing back into the pit when the pump shuts off.
If any one of those parts fails, the whole system fails, so the checklist covers each of them.
When to Do It
A good routine for most GTA homeowners:
- Early spring, before snowmelt and spring rain
- Late summer or early fall, before heavy fall storms
- After any major storm or power outage
- Any time you hear unusual noises or see water around the pit
The Sump Pump Checklist
1. Check the Power
- Make sure the pump is plugged directly into a working outlet and the cord isn’t damaged.
- Avoid extension cords unless the manufacturer allows them.
- If the outlet is on a breaker that’s tripped, find out why before simply resetting it.
2. Test the Pump With Water
- Slowly pour a bucket of water into the pit.
- Watch the float rise and the pump switch on.
- Make sure the water level drops quickly and the pump shuts off on its own.
- Repeat once or twice to be sure it starts reliably.
If the pump doesn’t start, hums without pumping, or keeps running after the pit is empty, it needs attention.
3. Clean the Pit and Intake
- Unplug the pump first.
- Remove gravel, silt, leaves and other debris from the bottom of the pit.
- Clear the intake screen or opening at the base of the pump, if your model has one.
4. Make Sure the Float Moves Freely
The float should rise and fall without catching on the pit wall, the power cord or the discharge pipe. A float that sticks is one of the most common reasons a pump fails to start.
5. Inspect the Check Valve
When the pump shuts off, you may hear a soft clunk as the check valve closes. That’s normal. If water flows back into the pit after each cycle, or the pump turns on and off very frequently, the valve may be worn.
6. Inspect the Discharge Line
- Check that the pipe is firmly connected and not cracked.
- Make sure the outdoor end is clear and points away from your foundation, ideally onto your lawn where water can soak in.
- In winter, make sure the outlet isn’t frozen solid or buried under snow and ice, because a blocked line can send water straight back toward the house.
- Don’t let the water drain toward a neighbour’s property, a walkway or a driveway where it can turn to ice.
7. Test the Battery Backup and Alarm
Storms that bring heavy rain can also knock out power, which is exactly when you need the pump most. If you have a battery backup pump, test it by unplugging the main pump and pouring water into the pit. Check the battery’s age and condition, and test any high-water alarm.
8. Listen and Look
Grinding, rattling, strong vibration or a motor that runs constantly can all signal wear. Rust, a bad smell or an oily film in the pit are also worth a closer look. Sump pumps don’t last forever, so if yours is getting old and showing these signs, plan a replacement before it fails during a storm.
Other Ways to Lower Your Flood Risk
A sump pump works best as part of a bigger plan:
- Disconnect downspouts. The City of Toronto requires downspouts to be disconnected from the sewer system. Direct the water onto your lawn, away from the foundation.
- Clean eavestroughs. Overflowing gutters dump water right beside your basement walls.
- Check your grading. Soil and paving should slope away from the house, not toward it.
- Consider a backwater valve. It helps stop sewage from backing up into your basement when City sewers are overloaded during heavy storms. Ask about sewer line services if you’re not sure what your home has.
The City of Toronto runs a Basement Flooding Protection Subsidy Program that can help eligible homeowners with the cost of flood protection work, such as installing a sump pump, a battery backup or a backwater valve. Eligibility rules, required permits and application steps apply, so check the City’s current program details before you start any work.
If Your Basement Floods
- Stay out of the water if it could be near outlets, appliances or the electrical panel, and contact your electricity utility if the power needs to be shut off.
- If you suspect a sewer backup, avoid using sinks, toilets and showers until it’s fixed.
- Report basement flooding to the City through 311.
- Take photos for your insurer, then call an emergency plumber to find the cause.
Need a Plumber?
If your sump pump fails the bucket test, or you’d like a new or backup pump installed, call Northlife Plumbing at (437) 246-5507. We offer sump pump installation and repair with 24/7 service across North York, Toronto and the GTA, plus free quotes and upfront pricing.