Cutting Copper Pipe – How to Get Rid of Toilet Water Hammering Part 1
Cutting a copper water supply pipe is a plumbing job that requires caution and planning. Here are some crucial things to consider before you begin:
1. Water Shut-Off
Locate the main water shut-off valve: This is the first and most important step. Know where your main water supply valve is located and make sure you can turn it off completely before starting any work. This will prevent flooding when you cut the pipe.
Consider local shut-off valves: If you have a shut-off valve specifically for the toilet line, use that instead of the main shut-off. This will allow you to isolate the toilet water supply without affecting water to other fixtures.
2. Tools and Materials
Proper pipe cutter: Use a quality pipe cutter designed for copper pipes. A clean, square cut is essential for a good connection later. Avoid using a hacksaw, which can leave jagged edges and make it difficult to achieve a leak-free seal.
Deburring tool: After cutting, use a deburring tool or sandpaper to remove any burrs or sharp edges inside the pipe. This ensures smooth water flow and prevents damage to valve washers.
Replacement parts: Have all the necessary fittings, valves, and pipes on hand before you start. This includes any specialized water hammer arrestors or shock absorbers you plan to install.
3. Safety Precautions
Eye protection: Wear safety glasses to protect your eyes from flying metal debris when cutting the pipe.
Gloves: Wear work gloves to protect your hands from sharp pipe edges and potential contaminants in the water.
Water drainage: Have a bucket or towels ready to catch any water that spills out when you cut the pipe.
4. Understanding Water Hammer
Cause: Water hammer occurs when the water flow is suddenly stopped, causing a pressure wave to travel through the pipes. This can happen when a valve closes quickly, like the fill valve in your toilet.
Potential solutions: Cutting the pipe might be necessary to install a water hammer arrestor, which acts as a shock absorber to cushion the pressure wave. However, other solutions might be more appropriate, such as:
Adjusting the fill valve: If the valve is closing too quickly, adjusting it might solve the problem.
Checking for loose pipes: Securely fastened pipes are less likely to bang.
Installing air chambers: These vertical pipes filled with air can absorb the shock of the water hammer.
5. Seeking Professional Help
When in doubt, call a plumber: If you're unsure about any aspect of this repair, it's always best to consult a qualified plumber. They have the experience and expertise to diagnose the problem accurately and ensure the repair is done correctly.
By carefully considering these factors before you start, you can minimize the risk of problems and ensure a successful repair of your water hammer issue.
