How to Detach PVC Pipes

PVC pipes are joined together using PVC cement. With the exception of the few seconds it takes to dry, once the PVC is stuck together, the joint is permanent. However, you may find that you need to alter your plumbing system, creating the need to detach some joints to add another line to your plumbing. In this case, you should know how to properly alter the PVC.

Of course, before starting this project, make sure that the water is turned off in the area you will be working. You should use the nearest water shut off valve, or the main water valve if absolutely necessary to stop water from entering into the PVC. You should then drain the pipes as much as possible before beginning and then place a bucket underneath the joint to catch any water. Keep a towel within reach for easy clean up as well.

Step 1: Locate the joint or area in question you wish to remove or detach. Make sure it is at least 3 inches away from any joint, and mark the area on the PVC pipe with a pen or marker.

Step 2: If you wish to detach an entire joint, repeat the process on the other side of the joint, making sure that the cut line is 3 inches away from the PVC joint or coupling.

Step 3: With one hand on the pipe to steady the PVC, use a hacksaw to cut along the lines you made in the previous steps. Be sure to grip the pipe firmly, but keep your fingers away from the teeth of the saw.

Step 4: Create a cut that is perpendicular to the pipe: try to avoid any sort of angle on the pipe and aim for a straight cut.

Step 5: Use a file or sandpaper to remove any burrs along the edge of the cut pipe.

Step 6: Add the needed joint and use joints and couplings as necessary to connect the PVC pipe into its new configuration.