Removing a joint pipe depends on the type of material (PVC, copper, etc.) and how it's joined (glued, soldered, threaded, etc.). Here’s a breakdown of common methods:
1. Removing Glued PVC Joints:
If the PVC joint is glued, you essentially have two main options:
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The "Heating and Twisting" Method (If possible): This method attempts to soften the glue and separate the pipe. It's most effective on newer joints.
- Heat the joint carefully with a heat gun (hair dryers are generally not hot enough).
- Wear gloves for protection.
- While the PVC is warm and pliable, try twisting and pulling the pipe out of the fitting.
- Be extremely cautious not to overheat the PVC, as it can melt or catch fire. This method might not always work, especially on older or well-glued joints.
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The "Cutting" Method (Most Common): This is the most reliable method for removing glued PVC joints.
- Tools Needed: Hacksaw, PVC cutter, or reciprocating saw.
- Procedure:
- Carefully cut the PVC pipe as close as possible to the fitting using your chosen cutting tool.
- Use pliers or a flathead screwdriver to carefully chip away at the remaining piece of pipe inside the fitting. Be careful not to damage the fitting itself if you intend to reuse it.
- Clean the inside of the fitting with a PVC primer to prepare it for re-gluing with a new piece of pipe.
2. Removing Soldered Copper Joints:
Removing soldered copper joints typically involves unsoldering.
- Tools Needed: Propane torch, solder, flux, wire brush, emery cloth.
- Procedure:
- Safety First: Ensure the area is well-ventilated and free of flammable materials. Wear safety glasses and gloves.
- Heating: Heat the joint evenly with a propane torch until the solder melts.
- Separation: While the solder is molten, use pliers to pull the pipe out of the fitting.
- Cleaning: Use a wire brush or emery cloth to clean the pipe and fitting of old solder.
- Re-soldering: Apply flux to the cleaned surfaces, reassemble the joint, and apply heat and solder to create a new connection.
3. Removing Threaded Pipe Joints:
Threaded pipe joints are usually easier to remove, though they can sometimes be tight.
- Tools Needed: Pipe wrenches.
- Procedure:
- Use two pipe wrenches – one to hold the fitting steady and the other to turn the pipe counterclockwise to loosen it.
- If the joint is stuck, apply penetrating oil to the threads and let it sit for a while before attempting to loosen it again.
- Be careful not to damage the pipe or fitting with the wrenches.
Important Considerations:
- Safety: Always wear appropriate safety gear, including eye protection and gloves.
- Shut Off Water Supply: Before working on any water pipes, always shut off the water supply to prevent leaks and water damage.
- Professional Help: If you're uncomfortable performing any of these tasks yourself, it's best to call a professional plumber.
