No, not all homes have sewer line cleanouts. In homes without cleanouts, clogs are more challenging to reach, but it’s not impossible. A plumber can use two other access points to reach a clog: the roof vent and any toilet.
The Roof Vent – The roof vent, also called the sewer vent, allows gas from your sewer lines to safely escape your home. This way, you don’t have to smell sewer odors coming from your drains and toilets. While the sewer line is indeed accessible through the vent, getting a camera or a hydro-jetting cleaner through all the turns in the pipes can be challenging.
The Toilet – If you don’t have any cleanouts or the roof vent is too tricky to use, plumbers will have to remove a toilet from your bathroom. Now they can reach the toilet’s drain pipe and insert a sewer line cleaner or camera from there. After the work is finished, they’ll put the toilet back, don’t worry.
How To Locate The Cleanout
The sewer line cleanout is usually 3 to 6 inches in diameter and is typically black or white. Most homes now are built with PVC sewer pipes, but there are still homes across the U.S. built before the 70s made with cast iron pipes. Some homes may also have brass or copper drainage lines, though these are much rarer.
How Climate Affects The Location
Depending on the local climate, the cleanout can be located in different areas.