If you're cleaning PVC pipes instead of clay or cast iron or other hard materials, you want to make sure that you won't use tools that are too rough for the material.
The carbide tipped tools are generally too radical for the PVC pipe, and even though you might get the job done with them if you're experienced enough, there's a high risk that you'll end up breaking the pipe due to running your carbide chains at any one point for too long. The carbide tips will eat the PVC up and you'll be left with a broken pipe.

Try these non-tipped cleaning chains instead - they are much more gentle on the PVC and yet they do great in removing any build-up inside the pipe.