Although some areas allow homeowners to use sewer line inspection cameras on their own, most municipalities require that licensed plumbers do these inspections. However, you can get help from friends or family members who are trade professionals in the plumbing area if you think there might be problems with your sewer lines. You’ll need to know how to find your shut-off valve. It is usually located under your sink so that you can turn the water off before inserting the camera into the drain (and turning it back on when necessary). If you don’t want to do it yourself, it’s easy enough to find out whether or not your city offers sewer camera inspection programs. Some towns will even send someone to inspect for you if you’re willing to wait, but you will pay more for this service than if you had done it yourself with a camera that you then return when they are finished. If you don’t want to wait on municipal sewer line inspections, then the easiest thing you can do is buy a sewer camera and learn how to use it. Of course, it will be easier if you have someone with some experience teaching you how to inspect your sewer lines (and this person does not need to be an expert plumber). Still, most people can learn using readily available online resources or YouTube videos.