Alexei Volkov
Flexible plastic plumbing, also known as PEX, is a popular choice for plumbers and DIY enthusiasts alike. It's easy to install, strong, durable, and long-lasting. PEX is colour-coded, with red pipes carrying hot water and blue pipes carrying cold water. It's also available in a range of lengths, from 10 feet to 500 feet, and diameters from 3/8 to 1 inch. Installation is a straightforward process, but it requires some special tools. This type of plumbing is ideal for retrofitting old water supply systems without tearing down walls, as its flexibility allows it to be fished through joist and stud spaces.
Explore related products
What You'll Learn
Joining two flexible plastic tubes
Firstly, you must ensure that you have the correct tubing and connectors. The tubing should be the same diameter, and the connectors should be suitable for the type and size of the tube. The clamps will only work if the joining tube is a very snug fit over the existing tube. You can obtain a length of plastic tubing with the same inner diameter (i.d.) as the outer diameter (o.d.) of the existing pipe.
Once you have the correct materials, you can begin the joining process. Loosen the clips and slide them along the pipe. Boil some water and place the ends of the plastic tubing into the hot water to make it supple. Then, force the tubing over the existing pipe, ensuring it covers at least one inch. If necessary, cut off any failed brass joints. Leave the plastic tubing so that it forms a flexible joint, ensuring it is not under stress.
Finally, tighten the clamps to secure the connection. If the pipes are not copper, you may need to take a different approach. In this case, you can obtain a length of copper pipe with the same o.d. as the i.d. of the plastic pipes and clamp the plastic pipes onto the copper pipe. Alternatively, you can leave the broken stubs in and use a plastic pipe to encompass them, tightening the clamps onto the bits left inside. This will create a more secure connection that is less likely to collapse.
Another method for joining plastic pipes is solvent welding. This involves using solvent cement to fuse two pieces of plastic piping together. To do this, you must first remove the natural sheen on the outside of the pipe by rubbing it with wire wool. Clean the pipe with UPVC cleaner, then let it dry. Apply the solvent cement to both surfaces, ensuring an even coat. Push the pipes together and twist to ensure an even spread of the solvent. Leave the pipes under no stress for at least 25 minutes to allow the joint to become completely watertight and secure.
Efficiently Adding Threads to Plastic Pipes: A Guide
You may want to see also
Explore related products
Using the correct tools
Flexible plastic piping, known as PEX, is a popular choice for plumbers due to its flexibility, durability, and ease of installation. It comes in a range of lengths, from 10 feet to 500 feet, and diameters from 3/8 inch to 1 inch. PEX piping is colour-coded, with red pipes for hot water and blue pipes for cold. White and grey pipes can be used for either.
When installing flexible plastic plumbing, it is important to use the correct tools to ensure a proper fit and avoid leaks. Here are some of the tools you may need:
- Sharp knife or scissors: You will need to cut the PEX piping to size, and a sharp knife or scissors are commonly used for this. It is important to ensure straight and clean cuts to guarantee a good fit.
- Power saw: For larger pipes, you may opt to use a power saw. It is recommended to use a blade designed for cutting plastic to prevent the blade from overheating and melting the pipe.
- File or sandpaper: After cutting, use a file or sandpaper to smooth out any sharp edges and prevent injuries.
- Toothed cutters: Although toothed cutters can be used, they may leave jagged edges that can affect the seal at the fitting.
- Clamps: Clamps are used to secure the pipes together. Ensure the joining pipes have a very snug fit to avoid leakage.
- Connectors: You will need connectors that are suitable for the diameter of your pipes. Brass or plastic couplers are available, but plastic is preferable for pipes carrying water with high chlorine content, as chlorine can corrode brass.
- Copper pipe: In some cases, you may need to use a length of copper pipe to join two plastic pipes. Ensure the copper pipe has the same outer diameter as the inner diameter of the plastic pipes.
- Hot water: When joining pipes, you may need to boil water to make the plastic more supple and malleable.
The Plastic Paradox: Society's Double-Edged View
You may want to see also
Explore related products
Choosing the right type of flexible plastic pipe
When choosing the right type of flexible plastic pipe, there are several factors to consider, including the intended function, layout of the space, and water quality. Here are some options for flexible plastic pipes and how to choose the right one for your needs:
Cross-linked Polyethylene (PEX): PEX pipes are a popular choice for flexible plastic piping due to their durability, flexibility, and relatively low cost. They are used to supply hot and cold water and can bend up to 90-degree angles, reducing the need for joints and fittings in walls. PEX pipes are easy to install and typically come in 1/2-inch and 3/4-inch diameters, making them suitable for weaving through walls, ceilings, and tight spaces. However, PEX pipes have a weakness when it comes to chlorine, which can cause micro-cracks and eventual failure. Therefore, it is important to consider the chlorine content of the water before opting for PEX.
Polyvinyl Chloride (PVC): PVC pipes are among the most common plastic plumbing pipes due to their affordability, durability, and corrosion resistance. They can last up to 70 years without rust or corrosion and are environmentally friendly as they are recyclable. Flexible PVC pipes should not be used where there is constant "deadhead" pressure, as it may cause the pipe to balloon and fail. Additionally, they are not suitable for use in high heat, such as furnace or heater flues, as the heat can cause the pipe to collapse.
Acrylonitrile Butadiene Styrene (ABS): ABS pipes are another modern plastic plumbing option that offers extreme strength and noise dampening. They are slightly less rigid than PVC pipes and are quicker to install since they do not require priming before joining. ABS pipes are resistant to extreme weather conditions, including UV light and cold temperatures, making them suitable for outdoor plumbing applications.
Polypropylene: Polypropylene is a type of polyolefin plastic that has been used in domestic plumbing systems. However, it shares similar challenges to other polyolefin materials, such as PEX and polybutylene, in that it is not resistant to chlorine degradation. Polypropylene can erode in hot chlorinated water systems and is less ductile, requiring a heat fusion technique for joining pipes, which can be challenging in tight spaces.
When choosing between these options, consider the specific requirements of your plumbing project, the layout of the space, and the water quality in your area. Consult with local building authorities and plumbing experts to ensure compliance with regulations and make informed decisions based on their recommendations.
Selena Quintanilla's Plastic Surgery: What Procedures Did She Get?
You may want to see also
Explore related products
Avoiding common mistakes
Installing flexible plastic plumbing can be a tricky task, and mistakes can be costly. Here are some common mistakes to avoid:
- Not consulting professionals: Many homeowners attempt plumbing installations without seeking professional advice, which can lead to costly errors. Plumbing requires knowledge of local codes, system layouts, and appropriate materials. Professionals can ensure that installations are safe, efficient, and compliant with regulations.
- Inadequate sealing: Improper sealing is a common mistake that can lead to leaks and system failures. It is essential to use the correct sealant or plumber's tape (Teflon tape) for your pipe materials to minimize the risk of leaks.
- Overtightening: Overtightening connections is a frequent error, often due to the fear of leakage. This can put unnecessary stress on the pipe and fitting, leading to cracks and leaks. Avoid forcing bolts beyond their limit, and be aware that plastic fittings do not require much torque to tighten.
- Inappropriate pipe materials: Choosing the wrong pipe material for your specific application can lead to issues. For example, galvanized steel can rust and leak when exposed to water, and PVC pipes can crack under high-temperature conditions, making them unsuitable for hot water lines.
- Improper venting and drainage: A well-functioning venting system prevents sewer odors, pressure imbalances, and slow drainage. Without proper vent pipes, wastewater flow is compromised. Drain pipes require a specific slope to ensure efficient flow; too little slope can cause clogs, while too much slope can leave solids behind.
- Using piercing saddle valves: These valves are included in some kits and are still available for purchase, but they do not meet current plumbing codes and are notorious for leaking. Install a ball valve instead to avoid potential mold problems.
- Using too much drain cleaner: Liquid drain cleaners can damage metal traps and pipes, causing leaks. They can also destroy the rubber gasket used in "mission" style couplings. If you must use a drain cleaner, opt for a small amount and avoid frequent usage.
- Not obtaining permits: Before altering a building's plumbing system, it is crucial to secure a permit from your local government unit to avoid fines and delays in your construction project.
Chinese Consumers: Reducing Plastic Waste
You may want to see also
Explore related products
Flexible plastic pipe maintenance
Flexible plastic pipes, also known as PEX (cross-linked polyethylene), are a popular choice for plumbing due to their flexibility, durability, and ease of installation. Here are some maintenance tips to keep your flexible plastic pipes in good condition:
Regular Inspection and Maintenance:
Regularly inspect your flexible plastic pipes for any signs of damage, such as corrosion, discolouration, bulging, leaks, or cracks. Addressing issues promptly can prevent more extensive and costly repairs down the line.
Temperature Considerations:
Flexible PVC pipes are rated for temperatures ranging from -13 degrees to 158 degrees Fahrenheit (-10 to 125 degrees Fahrenheit for Flexible PVC and 60-100 psi working pressure at 72 degrees Fahrenheit for Flexible PVC pipes). Do not use flexible plastic pipes for hot water, as they cannot withstand high temperatures and will collapse upon themselves.
Pressure Management:
Avoid constant "deadhead" pressure, which occurs when the pump is running with no place for the water to go. This can cause the pipe to balloon and eventually fail or lead to joint failure. Ensure your pipes are rated for the appropriate pressure to prevent leaks or bursts due to weak spots.
Protection from Insects and Sharp Objects:
Lace your trenches with boric acid to deter termites from eating through your flexible PVC pipes. Additionally, be cautious when burying pipes to prevent sharp rocks from rubbing holes in the pipes. Use backfill materials like sand or gravel to protect the pipes.
Repair Methods:
For minor leaks, epoxy putty can be applied directly to the affected area and shaped with your hands. Repair tape can also be used, requiring heat from a blow dryer or heat gun to bond with the pipe and create a waterproof seal. Sealants can be injected into the affected area, expanding and sealing off gaps or holes. In some cases, you may need to replace the damaged section of the pipe.
By following these maintenance guidelines, you can extend the lifespan of your flexible plastic pipes and ensure their proper functioning.
The Journey of Plastic: From Transport to Sale
You may want to see also
Frequently asked questions
Flexible plastic piping is often referred to as PEX.
PEX is semi-bendable, which eliminates the need for joints and fittings in walls, reducing the risk of hidden leaks. It is also colour-coded, with red pipes carrying hot water and blue carrying cold water. PEX piping does not require soldering, which makes installing copper and galvanised steel pipes more complex.
You will need special installation tools to install PEX. You will also need toothed cutters, a sharp knife or scissors, or a power saw.
It is important to ensure that the cuts are straight and clean. You should also label each pipe with its destination as you run it to avoid confusion.
