Sofia Martinez
Connecting lead pipe to plastic pipe is a challenging task that requires careful execution. It is essential to measure the outer and inner diameters of the lead pipe accurately to select the appropriate fittings. This process may involve cutting a small section of the pipe, weighing it, and calculating the pipe type. The market offers various products, such as 'lead loc' or 'lead lock', designed to facilitate the connection between lead and plastic pipes. However, the process can be complex, and it is recommended to consult a competent plumber or refer to detailed instructions to ensure a successful and secure joint between the two different pipe materials.
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What You'll Learn
Use a 'lead loc' connector
Connecting a plastic pipe to lead is a straightforward process with a few options available. One of the most popular methods is to use a 'lead loc' or 'lead lock' connector. This connector is specifically designed to join plastic pipes to lead pipes, and it is available at most plumbing shops, including Wickes and B&Q.
To use a lead loc connector, first, ensure you have the correct size by measuring the outer and inner diameter of the lead pipe. Lead loc connectors are designed to fit specific pipe sizes, so providing the merchant with the correct diameter is essential. Once you have the correct size connector, simply connect one side to the lead pipe and the other side to the plastic pipe. It is important to note that you should turn off the mains water supply before attempting to connect the pipes to avoid any leaks or damage.
If you are uncomfortable with plumbing work or unsure about the process, it is always best to consult a professional. They will be able to advise on the best course of action and ensure that the connection is made safely and securely.
Using a lead loc connector is a simple and effective way to join a plastic pipe to a lead pipe, but it is important to follow the correct steps and take the necessary precautions to avoid any potential issues.
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Cut and insert the plastic pipe
Cutting and inserting a plastic pipe is a delicate process that requires careful preparation and the right tools. Here is a step-by-step guide:
Step 1: Prepare the Plastic Pipe
First, you need to determine the type of plastic pipe you are working with. Common types include PVC (polyvinyl chloride), CPVC (chlorinated polyvinyl chloride), and ABS (Acrylonitrile Butadiene Styrene). Each type has unique characteristics and is suitable for different applications, such as cold water, irrigation, or hot water lines. Knowing the type of pipe helps you select the appropriate cutting tools and techniques.
Step 2: Measure and Mark the Pipe
Using a tape measure and a pencil, carefully mark the pipe at the desired cutting location. This step ensures that you cut the pipe to the correct length and helps achieve a straight and accurate cut.
Step 3: Choose the Right Cutting Tool
The cutting tool you select depends on the type and diameter of the plastic pipe, as well as the number of cuts you need to make. For small pipes with a diameter of 1 inch or less, scissor-type plastic cutters or a hacksaw are suitable. Ratchet-style cutters can handle larger diameters of up to 1 1/2 inches. If you have many cuts to make, a power miter saw is the best option for all pipe sizes.
Step 4: Cut the Plastic Pipe
Put on the necessary safety gear, including eye and ear protection. Secure the pipe in a vice grip or clamp it down on a stable surface. If using a hacksaw, slowly draw the blade back and forth, ensuring a straight cut. For scissor-style or ratchet-style cutters, align the blade with the mark and squeeze the handles to rotate the cutter around the pipe. With a power miter saw, activate the blade and slowly bring it down onto the pipe until you cut through.
Step 5: Smooth the Edges (Deburring)
After cutting, the pipe may have rough edges or burrs. Use a deburring tool, utility knife, or even a butter knife to remove these sharp bits and create a smoother edge. This step is crucial for ensuring a better connection during the gluing process and when joining the pipes.
Step 6: Insert the Plastic Pipe into the Lead Pipe
With the plastic pipe cut to the correct length and its edges smoothed, you can now insert it into the lead pipe. Gently crimp the top edge of the lead pipe around the plastic pipe using sliding joint water-pump pliers. Ensure the plastic pipe is inserted about an inch into the lead pipe.
By following these steps, you can successfully cut and insert a plastic pipe into a lead pipe, creating a neat and secure joint. Remember to take your time, prioritize safety, and choose the appropriate tools for the specific plastic pipe you are working with.
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Secure lead locs against rotation
To secure lead locs against rotation, you must first establish the size of your lead pipe. Lead pipes typically come in three sizes: 1/2" x 6lb, 1/2" x 7lb, or 3/4" x 11lb. The weight refers to the weight of a foot of the pipe. To determine the size, cut a 6-inch length of the pipe, weigh it, and double the weight. This will help you identify the type of lead and the corresponding lead loc size.
Once you have identified the correct lead loc size, you will need to cut the lead pipe at each end and clean it thoroughly. Use a Stanley knife or a lead knife to remove any outside seams without damaging the lead. Slightly chamfer the end of the pipe to ensure a smooth connection.
After preparing the pipe, you can proceed to fit the lead locs onto the lead. Lead locs are available at hardware stores like Wickes, B&Q, and plumbing shops. They are designed to connect lead pipes to plastic pipes. Ensure that the lead locs match both ends of the pipes.
Finally, follow the manufacturer's instructions for assembling the pipes with the lead locs. Secure the lead locs against rotation on the lead pipe to prevent them from moving or shifting. You may need specific tools like spanners, grips, and pipe cutters to tighten and secure the connection.
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Test with normal water pressure
To connect a plastic pipe to a lead pipe, you can use a fitting called a "lead loc" or "lead lock". Lead locs are available at hardware stores like Wickes, B&Q, and plumbing shops. One side of the lead loc is connected to the lead pipe, while the other side is connected to the plastic pipe.
Step 1: Measure the Lead Pipe
Before purchasing a lead loc, you need to determine the size of your lead pipe. Measure both the outer and inner diameter of the lead pipe. The weight of the lead pipe is also important, as it is used to determine the type of lead. Cut a 6-inch length of the pipe and weigh it. Double the weight to get the weight per foot. For example, if a 6-inch length weighs 6 lb, then the pipe is considered 1/2" x 6lb lead.
Step 2: Select the Appropriate Lead Loc and Plastic Pipe Size
Lead locs come in various sizes, and you need to select the correct size that matches both ends of the pipes. If you have 1/2" lead, use a 15mm plastic pipe and four 1/2" lead locs. If you have 3/4" lead, use a 22mm plastic pipe and four 3/4" lead locs.
Step 3: Cut and Clean the Lead Pipe
Cut the lead pipe at each end, creating a clean edge. Use a Stanley knife or a lead knife to remove any outside seams without damaging the lead. Chamfer the end slightly to prepare it for the lead loc.
Step 4: Install the Lead Locs
Fit the lead locs onto the lead pipe, ensuring they are secure and do not rotate.
Step 5: Cut and Prepare the Plastic Pipe
Cut the plastic pipe to the appropriate length, ensuring the ends are square. Fit the plastic pipe inserts, without O-rings if using JG Speedfit.
Step 6: Connect the Plastic Pipe
Fit the plastic pipe to the compression fittings, connecting it to the lead locs.
Step 7: Test with Normal Water Pressure
Turn on the water supply and test the connection under normal water pressure. If there are any slight leaks or weeps, tighten the connections as necessary.
It is important to note that working with lead pipes can be challenging, and it is always recommended to consult a professional plumber if you are unsure or uncomfortable with any part of the process. Additionally, remember to turn off the water supply before beginning any plumbing work.
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Compression joints
Once the pipe has been prepared, the compression nut and ring (also known as an olive) can be slid onto the pipe. The pipe should then be pushed fully into the fitting body, ensuring that it is hand-tightened securely. To further tighten the connection, a wrench can be used, but care must be taken not to overtighten, as this may cause damage to the fitting or pipe.
After tightening, it is important to check for leaks by pressurising the system. If any leaks are detected, the joint may need to be tightened further or sealed using a suitable method. In some cases, it may be beneficial to use an insert to strengthen the end of the plastic pipe before tightening the compression fitting.
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Frequently asked questions
You can use a fitting called a lead lock or lead loc, which is available at hardware stores and plumbing shops. One side of the lead loc is connected to the lead while the other side is connected to the plastic pipe.
First, measure the outer and inner diameter of the lead pipe. Cut the plastic pipe to length with plastic pipe cutters and fit pipe inserts. Fit the plastic to compression fittings, being careful to secure Lead Locs against rotation on the lead.
Get the right Lead Locs, clean the lead without damaging it, and use the correct plastic pipe inserts. You will need two spanners or a spanner and a set of good grips, plastic pipe cutters, and a Stanley knife or similar tool.
Remember to turn off the water supply before beginning any work. It is also important to put the new stop cock in an easily accessible area so you can turn it on and off easily.
Lead locs are available at hardware stores and plumbing shops, including Wickes, B&Q, City Plumbing, and PTS.
