Installing pipes is cheap, easy to install, and it has many other features. For 12-inch drain pipes, these are easy to clean, and less likely to be any.
The install of 12-inch PVC pipes allows easy cleaning and clearage. If 12-inch PVC pipes are easy to clean, there is no need to worry about the size of the pipes. 12-inch PVC pipes are easy to clean and without any debris from the lumbers.