A frind of mine recently had a problem with tree roots in his sewer line. It resulted in water in his basement. His experience has prompted me to ask a few questions about his issue, especially since I live in an older neighbourhood with MANY large trees.

How do I know whether I need to have my sewer line cleaned? What sorts of symptoms should I look for?

I have a backwater valve, so if the line were to become clogged with tree roots, where would that water go if it can't back up into the house?

What is the best way to address the issue of roots in the sewer line? I've heard that having someone cut the roots in the line will only encourage the roots to re-grow more quickly. What have you found to be effective?

Thank you so much for your information.