Sometimes leaks may be obvious, but other times it can be much harder to pinpoint exactly where your leaking is coming from.
Signs that you have a “hidden” leak can include an increase in water consumption. Your municipality may send you a letter warning of the increase in used water and advise that the cause of the extra water may be due to a possible leak in your drainage system.
A leak like this would most likely be outside of your home and connected to your main water line (water coming from the city). A camera inspection can be done to see the extent of the damage and pin point exactly where the crack in your pipe is located.
In addition, a camera may be used after a drain has been cleared to make sure that the job is 100% complete and there are no sneaky roots or build up hiding.
It is important to note, however, that if there is a lot of water backed up, the camera work must be done after the water/blockages have been cleared. This is so the camera can get clear visuals.
You can also request a line be camera’ed if you are having reoccurring issues. Sometimes, a blockage can be located far down your drainage line and can be missed by technicians. The use of a camera can help identify issues and be used as a “double check” after the line has been augured.