Sewers and drains in Alta Vista, South Keys & Hunt Club
Alta Vista and Elmvale Acres were built through the 1950s and 60s on big lots with trees that are now fully grown. Those homes usually have a cast iron building drain under the basement floor and a clay or cast iron sewer lateral out to the street. At 60-plus years old, the cast iron thins along the bottom and the lateral joints let roots in.
South Keys, Greenboro and Hunt Club came later, mostly from the 1970s on, with ABS drains, sump pits and basements that were finished long after the plumbing went in.

City works on your street
As 1950s and 60s streets come up for integrated road, sewer and watermain renewal, the City replaces its pipes up to your property line. What's on your side is usually the same age as what the City just took out. If your street is on the City's renewal list, it's worth a camera inspection of your lateral before the new connection is made.
Many homes here also qualify for the City's Residential Protective Plumbing Program: up to $1,000 for a backwater valve (homes built before 2012) and up to $1,500 or $3,000 for a sump with battery backup (homes built before 2004).
Storms and basement flooding
In heavy rain, the risk here splits by age. In older Alta Vista homes, it's sewage coming up through the floor drain. In newer South Keys and Hunt Club homes, it's a sump that can't keep up, or loses power.
Live in Alta Vista & South Keys?
Tell us what's going on at your place. You get a clear answer and one written price before any work starts.
What's in your house, by the year it was built
The year a home was built tells us most of what's behind the walls and under the floor. Builders used the materials of their time, so one subdivision can share the same weak spots. Here's what we usually find in Alta Vista & South Keys:
| Built | What's usually in the walls and under the floor | What to watch for |
|---|---|---|
| 1958 to mid-1970s | Copper water lines, cast iron stack and building drain, clay or early plastic lateral | Cast iron rotting under the slab; roots at lateral joints; no backwater valve |
| Late 1970s to mid-1990s | ABS drains, copper or Poly-B (grey "PB2110") supply lines, sump pits in many suburbs | Poly-B fitting failures and insurance limits; first-generation sump pumps; no backwater valve |
| Mid-1990s to 2007 | ABS drains, copper, PEX or Kitec-style supply pipe, sump pit and finished basement | Brittle fittings on early plastic supply systems; sump with no battery backup |
Buying a home here
Before you firm up an offer, ask for:
- A sewer camera inspection of the lateral from the house to the street. Replacing a failed sewer line is one of the biggest repair bills a homeowner can face.
- The water pipe material where it enters the house (lead before 1958; Poly-B in some 1980s and 1990s homes).
- A look at the sump and floor drain: age of the pump, battery backup, and whether there's a backwater valve.
- Any history of water in the basement, and what was done about it.
Already own here?
- Test your sump pump each spring and fall, and check the backup battery's age.
- If a floor drain has backed up even once, get the line cameraed before the next storm.
- If the City sends a renewal notice for your street, call us before their crew reaches your connection.
How old plumbing ties into new
Most homes here are a mix of eras: an original cast iron stack with an ABS bathroom added in the 1990s, or copper lines patched with PEX. That works when the joins are done properly. Cast iron to ABS needs the right transition couplings and support so the old pipe doesn't crack under the new. Copper or Poly-B to PEX needs the right fittings, not a quick crimp onto pipe that's already brittle. And a backwater valve has to go into the building drain at the right spot, with an access cover you can actually reach.
Why call Michael
When the problem is under the basement floor or out under the lawn, most plumbers send you to someone else. We don't. Michael's crews cut the concrete, dig the trench, replace the pipe, pass the City inspection and put the floor back, in Alta Vista & South Keys and every other part of Ottawa. One crew, one written price, and a 2-year workmanship warranty.


