Not everyone who does yard maintenance thinks about what happens underground. You think it's enough to rake up leaves and pick up fallen branches, but the trees in your yard are also rooting their way under your home.
If you have a tree or two in your yard and notice problems with your sewer line, there's a good chance invasive roots are to blame. It's one of the most common reasons for a recurring clogged drain.
Here's some information on the risks to your sewer line and what you can do about a sewer back up in Calgary.