Type L vs K Copper: Which Pipe is Best?

When selecting copper piping for plumbing or heating applications, understanding the distinctions between Type K and Type L copper is essential. The American Society for Testing and Materials (ASTM) sets standards for copper pipe, defining specifications for dimensions, alloys, and temper. The wall thickness is a key attribute, with Type K copper possessing a thicker wall than Type L, offering greater pressure resistance. For example, underground water mains frequently utilize Type K due to its durability, whereas indoor plumbing often uses Type L because it offers a balance between cost and performance. Therefore, a detailed comparison of type l copper vs type k is crucial for engineers and plumbers to ensure they select the optimal material for a specific project’s code requirements and longevity.

Copper piping stands as a cornerstone in plumbing and HVAC systems, recognized for its reliability and durability. Its widespread adoption stems from a blend of practical benefits and proven performance, making it a preferred choice across various applications. Understanding the nuances of copper piping is essential for professionals and homeowners alike.

The Enduring Appeal of Copper

Copper’s inherent properties contribute to its enduring appeal. It is a naturally corrosion-resistant material, ensuring longevity and minimizing the risk of leaks or failures.

Its malleability allows for ease of installation, while its robust nature withstands demanding conditions. These qualities make copper a dependable option for fluid and gas conveyance.

Versatility Across Settings

Copper’s versatility shines in both residential and commercial environments. In homes, it serves as a reliable conduit for potable water, heating systems, and air conditioning.

Commercial buildings benefit from copper’s ability to handle high-demand plumbing, HVAC, and fire suppression systems. Its adaptability makes it suitable for diverse infrastructure needs.

Importance of Type Selection

The effectiveness of a copper piping system hinges on selecting the correct type of pipe for the intended application. Different grades of copper piping, such as Type K, L, and M, possess varying wall thicknesses and pressure ratings.

Choosing the appropriate type ensures optimal performance, safety, and compliance with relevant codes and standards. A mismatched pipe can lead to premature failure and costly repairs.

Navigating the Nuances

This section aims to provide a foundational understanding of copper piping systems. We will be decoding the different types of copper pipes, their materials and fittings, and explaining the unique characteristics and ideal uses of each.

We will outline essential concepts like wall thickness, pressure rating, and code compliance to provide a comprehensive understanding of copper piping performance and safety.

Lastly, we will showcase the wide range of applications and industries where copper piping is used, highlighting its advantages in each scenario.

Decoding Copper Pipe Types and Materials

Copper piping stands as a cornerstone in plumbing and HVAC systems, recognized for its reliability and durability. Its widespread adoption stems from a blend of practical benefits and proven performance, making it a preferred choice across various applications. Understanding the nuances of copper piping is essential for professionals and homeowners alike, beginning with the different types and the materials that define their functionality.

Unveiling Copper Pipe Types

The world of copper pipes isn’t monolithic; it’s categorized into distinct types, each designed to meet specific demands. The primary classifications – Type K, Type L, and Type M – differ primarily in wall thickness, dictating their pressure tolerance and suitable applications. Let’s dissect these distinctions.

Type K Copper Pipe

Type K copper is the heavyweight champion of the copper piping family. It boasts the thickest wall, rendering it exceptionally robust and capable of withstanding high pressures.

This characteristic makes it the go-to choice for demanding applications where durability is paramount.

Applications of Type K

Due to its strength, Type K is frequently specified for underground water mains, where it must endure soil pressure and potential external damage. It’s also commonly found in fire protection systems, where reliability under pressure is non-negotiable. The thick walls of Type K ensure longevity and minimize the risk of leaks in critical infrastructure.

Standards and Durability

The increased wall thickness of Type K, as defined by industry standards, directly correlates to its enhanced durability. This makes it a long-term investment, reducing the likelihood of replacements and repairs.

Type L Copper Pipe

Type L copper offers a balanced approach, sitting between the robust Type K and the lighter Type M. Its moderate wall thickness provides a sweet spot between cost and performance, making it a versatile option for various plumbing needs.

Applications of Type L

Type L shines in interior plumbing systems, particularly for water distribution. It handles typical household water pressures with ease.

Its versatility also extends to HVAC systems and general plumbing repairs, making it a staple in residential and commercial projects.

Versatility

The versatility of Type L stems from its ability to handle most common plumbing scenarios without the premium cost associated with Type K. Its widespread availability and ease of installation further contribute to its popularity.

Type M Copper Pipe

Type M copper is the most lightweight of the common copper pipe types. Its thinner wall translates to cost-effectiveness, but it also implies a lower pressure rating and reduced durability compared to Types K and L.

Applications of Type M

Type M is primarily used in drain, waste, and vent (DWV) systems, where it does not need to withstand high pressures. In some regions, its use for potable water lines is restricted or prohibited due to its lower pressure rating.

Cost-Effectiveness vs. Durability

While Type M offers a budget-friendly option, it’s essential to consider its limitations. Its reduced wall thickness makes it more susceptible to damage and corrosion. Therefore, careful application is crucial to ensure long-term system integrity.

The Essence of Copper: Material Properties

Beyond the different types, the fundamental properties of copper itself contribute significantly to the performance and longevity of piping systems. Let’s consider the properties of copper (Cu).

Inherent Advantages

Copper’s inherent advantages include exceptional corrosion resistance, high thermal conductivity, and malleability. These characteristics make it an ideal material for plumbing applications.

Its resistance to corrosion ensures long-term reliability, while its thermal conductivity enhances efficiency in hot water systems. Malleability allows for easy bending and shaping during installation.

Material Production and Quality

The production process of copper pipes directly impacts their quality and performance. Reputable manufacturers adhere to strict standards to ensure consistent wall thickness, material purity, and dimensional accuracy.

These factors contribute to the overall reliability and lifespan of the piping system.

Connecting the Pieces: Fittings

Fittings are crucial components in any copper piping system, enabling connections, changes in direction, and branching. Elbows, tees, and couplings are the most common types, each serving a distinct purpose.

Types of Fittings

Elbows facilitate changes in direction, tees allow for branching, and couplings join two pipes together. The proper selection and installation of fittings are essential for maintaining system integrity.

Compatibility

It’s critical to ensure that fittings are compatible with the chosen copper pipe type. Using the wrong fitting can compromise the joint’s strength and lead to leaks.

Manufacturers typically mark fittings to indicate their compatibility with specific pipe types.

Preventing Leaks

Properly installed fittings are the first line of defense against leaks. Clean, fluxed, and soldered joints create a permanent, leak-proof seal. Regular inspection and maintenance can further prevent potential issues.

The Art of Soldering: Solder and Flux

Soldering is the most common method for joining copper pipes and fittings. It involves using heat and a filler metal (solder) to create a strong, leak-proof connection. The process requires careful preparation, the right materials, and proper technique.

The Soldering Process

The soldering process begins with cleaning the pipe and fitting surfaces to remove oxides and contaminants. Flux is then applied to prevent oxidation during heating and promote solder flow. The joint is heated with a torch, and solder is applied, melting and flowing into the joint to create a seal.

Surface Preparation

Thorough surface preparation is paramount for a successful solder joint. Clean surfaces allow the solder to bond properly, creating a strong and reliable connection.

Heat Application

Controlling heat application is also key. Overheating can damage the pipe and solder, while insufficient heat can result in a weak joint.

Lead-Free Solder

For potable water systems, the use of lead-free solder is essential to prevent lead contamination of drinking water. Lead-free solder meets strict regulatory standards and ensures the safety of the water supply.

Key Concepts: Understanding Copper Piping Performance

Decoding the types of copper pipes and materials lays the foundation, but a deeper understanding of key concepts is crucial for ensuring long-term performance and safety. This section delves into the essential considerations that govern copper piping systems, including wall thickness, pressure ratings, code compliance, and the integrity of soldered joints. Grasping these principles is not merely academic; it’s fundamental to selecting, installing, and maintaining copper piping systems that function reliably and safely for years to come.

The Role of Wall Thickness

Wall thickness is a primary determinant of a copper pipe’s strength and its suitability for various applications. A thicker wall translates to greater resistance to pressure and physical stress, making it appropriate for demanding environments. Understanding these differences is crucial for selecting the correct pipe for the job.

Type K copper, with its robust wall thickness, is engineered for high-pressure situations, often found in underground water mains and fire suppression systems. Type L offers a balance of cost and durability, making it suitable for interior plumbing and water distribution. Conversely, Type M, with its thinner walls, is typically reserved for drain, waste, and vent (DWV) systems where pressure demands are lower. Selecting the appropriate wall thickness prevents premature failure and ensures the system’s longevity.

Deciphering Pressure Ratings

The pressure rating of a copper pipe specifies the maximum internal pressure it can safely withstand. This rating is paramount in pipe selection, as exceeding it can lead to catastrophic failures. Factors like temperature and the type of fluid transported also influence a pipe’s pressure-handling capacity.

Higher temperatures generally reduce a pipe’s pressure rating, while certain fluids may accelerate corrosion, weakening the pipe over time. To prevent pipe failure and potential hazards, it is vital to consult pressure rating charts and factor in safety margins.

Navigating Code Compliance

Adhering to building and plumbing codes is not just a matter of legality; it’s a fundamental aspect of safety and responsible construction. These codes establish minimum standards for materials, installation practices, and system design, safeguarding public health and safety.

Understanding local regulations and standards is essential for ensuring compliance. Resources such as the Uniform Plumbing Code (UPC) and the International Plumbing Code (IPC) provide comprehensive guidelines for copper piping installation.

Plumbing Codes: UPC and IPC

The Uniform Plumbing Code (UPC) and the International Plumbing Code (IPC) are two of the most widely adopted plumbing codes in North America. They each provide detailed requirements for copper piping installation, ensuring uniformity and safety across different jurisdictions.

Both codes address various aspects, from pipe sizing and support to jointing methods and backflow prevention. Understanding these codes and their local adaptations is crucial for plumbers and contractors to ensure compliance.

Maintaining Solder Joint Integrity

A copper piping system is only as reliable as its weakest point, and solder joints are often the most vulnerable. Ensuring the integrity of these connections is vital for long-term system performance.

Proper soldering techniques are essential for creating strong, leak-proof joints. This includes thorough cleaning of pipe surfaces, applying flux to promote solder flow, and using a soldering torch to heat the joint evenly.

Post-installation inspection and testing methods, such as pressure testing, can help identify potential leaks and ensure joint soundness.

Prolonging Service Life

The lifespan of a copper piping system is influenced by several factors, including water quality, installation practices, and maintenance routines. Aggressive water chemistry can accelerate corrosion, while improper installation can introduce stress points that lead to premature failure.

Implementing preventative maintenance strategies, such as periodic inspections and water quality testing, can help extend service life. Addressing minor issues promptly can prevent them from escalating into major problems, saving time and money in the long run.

Diverse Applications: Industries Embracing Copper Piping

Decoding the types of copper pipes and materials lays the foundation, but understanding where these materials are best applied brings the picture into sharper focus. Copper’s inherent properties—durability, corrosion resistance, and thermal conductivity—make it a go-to solution across a spectrum of industries. Let’s explore the diverse applications where copper piping shines, underscoring its advantages in each scenario.

Potable Water Systems: The Gold Standard

Copper plays an essential role in delivering safe drinking water. Its long-standing reputation is well-earned, thanks to key attributes that ensure water quality and system longevity.

Antimicrobial Properties

One of copper’s standout features is its natural antimicrobial capability. Copper ions released into the water can inhibit the growth of bacteria and viruses, providing an additional layer of protection against waterborne pathogens.

This makes copper a preferred choice for potable water systems, enhancing overall public health.

Water Quality Considerations

While copper is generally safe, water quality considerations are vital. Highly acidic water can cause copper to leach into the water supply, potentially leading to health concerns and pipe corrosion.

To mitigate this, water treatment methods, such as pH balancing, can be implemented to maintain optimal water quality. Regular testing ensures that copper levels remain within safe limits.

Domestic Water Heating: Efficiency and Reliability

Copper pipes are exceptionally efficient at transporting heated water within residential settings. Their high thermal conductivity allows for rapid and uniform heat distribution, reducing energy waste and improving overall system efficiency.

Heat Resistance

Copper’s ability to withstand high temperatures without degrading makes it ideal for domestic water heating systems. This ensures longevity and reliable performance, even under demanding conditions.

Insulation for Energy Efficiency

To maximize energy efficiency, it is highly recommended to insulate copper pipes in domestic water heating systems. Insulation reduces heat loss, ensuring that water remains hotter for longer periods, thereby lowering energy bills.

Underground Water Service: Durability Below the Surface

For underground water supply lines, copper offers notable advantages. When properly installed, copper pipes can resist soil corrosion and root penetration, providing a reliable and long-lasting solution.

Installation Techniques

Proper installation is crucial for underground applications. This involves:

• Trenching: Digging trenches to the correct depth, ensuring the pipe is below the frost line.
• Bedding: Providing a stable base of sand or gravel to protect the pipe from sharp objects.
• Backfilling: Carefully backfilling the trench with suitable material to avoid damaging the pipe.

By adhering to these techniques, the lifespan of underground copper water lines can be significantly extended.

Commercial Plumbing: Meeting High-Demand Needs

Commercial buildings place significant demands on plumbing systems. Copper’s durability and resistance to corrosion make it well-suited for these high-usage environments.

Commercial applications often require larger diameter pipes to accommodate higher flow rates, and copper’s availability in various sizes makes it a versatile choice.

Residential Plumbing: A Comparative Look

Copper is a staple in residential plumbing systems, valued for its reliability and longevity.

Copper vs. PEX

When choosing materials for residential plumbing, a common debate is copper versus PEX (cross-linked polyethylene). Copper offers superior durability and resistance to high temperatures, while PEX is more flexible and easier to install.

The choice often depends on budget, installation complexity, and specific performance requirements. While PEX may be more cost-effective upfront, copper’s extended lifespan and resistance to degradation can provide better long-term value.

Navigating Standards and Organizations

Decoding the types of copper pipes and materials lays the foundation, but understanding the regulatory landscape that governs their use is equally critical. Several key organizations shape copper piping practices, each contributing to the quality, safety, and reliability of these systems. This section delves into these pivotal entities and their respective roles.

ASTM International: Setting the Material Standard

ASTM International, formerly known as the American Society for Testing and Materials, is a globally recognized organization that develops and publishes voluntary consensus standards for a wide range of materials, products, systems, and services.

Its role in the copper piping industry is paramount, as it sets the benchmarks for material properties, testing procedures, and performance criteria.

Key ASTM Standards for Copper Piping

Several ASTM standards are crucial for ensuring the quality and safety of copper piping systems:

• ASTM B42: Standard Specification for Seamless Copper Pipe, Standard Sizes. This standard outlines the requirements for seamless copper pipe used in various applications.

• ASTM B75: Standard Specification for Seamless Copper Tube. This specifies the requirements for seamless copper tube suitable for general engineering purposes.

• ASTM B88: Standard Specification for Seamless Copper Water Tube. A cornerstone standard that specifies requirements for seamless copper water tube, commonly used in plumbing applications.

• ASTM B813: Standard Specification for Liquid and Paste Fluxes for Soldering of Copper and Copper Alloy Tube. This standard specifies the chemical and performance requirements for fluxes used in soldering copper and copper alloy tubes.

• ASTM B828: Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings. This practice covers procedures for making soldered capillary joints in copper and copper alloy tube and fittings.

Adherence to these and other relevant ASTM standards ensures that copper pipes and related components meet rigorous quality benchmarks, promoting safety and reliability in plumbing and HVAC systems.

IAPMO: Crafting the Uniform Plumbing Code

The International Association of Plumbing and Mechanical Officials (IAPMO) is a leading organization focused on developing and advocating for comprehensive plumbing and mechanical codes. Its most notable contribution is the Uniform Plumbing Code (UPC).

The UPC is a model code that sets forth the requirements for safe and sanitary plumbing systems, addressing everything from pipe sizing and installation to fixture requirements and backflow prevention.

IAPMO’s Impact on Plumbing Safety

IAPMO plays a vital role in promoting plumbing safety through:

• Code Development: Regularly updating the UPC to reflect the latest technological advancements and best practices.

• Education and Training: Providing educational resources and training programs for plumbers, inspectors, and other industry professionals.

• Certification: Offering certifications for plumbing products and systems that meet UPC standards.

By adhering to the UPC, jurisdictions and contractors can ensure that plumbing systems are designed and installed to the highest standards of safety and performance.

ICC: Shaping the International Plumbing Code

The International Code Council (ICC) is another influential organization dedicated to developing model codes and standards used worldwide. Its flagship plumbing code is the International Plumbing Code (IPC).

The IPC provides comprehensive regulations for plumbing systems, covering a wide range of topics similar to the UPC.

The IPC’s Widespread Adoption

The IPC has gained significant traction and is widely adopted across the United States and internationally. Its influence stems from:

• Comprehensive Coverage: Addressing virtually all aspects of plumbing system design and installation.

• Regular Updates: Continuously evolving to incorporate new technologies and address emerging challenges.

• Broad Acceptance: Recognized and adopted by numerous jurisdictions and governmental bodies.

By utilizing the IPC, building officials, engineers, and contractors can ensure that plumbing systems meet nationally recognized standards of safety and efficiency.

Copper Development Association: Promoting Copper Excellence

The Copper Development Association (CDA) is a non-profit organization dedicated to promoting the use of copper and its alloys in various industries. The CDA serves as a technical resource, educational hub, and advocacy group for the copper industry.

CDA’s Mission and Support

The CDA fulfills its mission by:

• Providing Technical Expertise: Offering technical assistance and resources to engineers, contractors, and other professionals.

• Conducting Research: Supporting research and development efforts to improve copper-based products and applications.

• Developing Educational Programs: Creating educational materials and training programs to enhance knowledge and skills related to copper.

• Advocating for Copper: Promoting the benefits of copper through marketing campaigns and industry outreach initiatives.

Through these efforts, the CDA plays a crucial role in ensuring the continued success and sustainability of copper piping systems.

By understanding the roles and contributions of organizations such as ASTM International, IAPMO, ICC, and CDA, professionals in the plumbing and HVAC industries can navigate the complex landscape of standards and best practices, ensuring the safe, reliable, and efficient use of copper piping systems.

Essential Tools and Equipment for Copper Work

Decoding the types of copper pipes and materials lays the foundation, but proper installation relies heavily on having the right tools. Working effectively with copper pipes requires a specific set of tools and equipment. This section details these essential items, providing guidance on their selection, maintenance, and proper usage to ensure precise, reliable, and safe copper work.

Pipe Cutters: Achieving Precision

The initial step in any copper piping project is cutting the pipe to the desired length. Selecting the right pipe cutter is crucial for achieving clean and accurate cuts, which are essential for proper joint fitting and system integrity.

Types of Pipe Cutters

Several types of pipe cutters are available, each suited for different situations and preferences:

• Wheel Cutters: These are the most common type, using a rotating cutting wheel to gradually slice through the pipe. Wheel cutters are compact and ideal for tight spaces.

• Saw Cutters: These use a fine-toothed saw blade to cut through the pipe. Saw cutters provide a faster cutting speed but may leave a rougher edge.

Best Practices for Clean Cuts

To achieve a clean, burr-free cut:

1. Ensure the cutting wheel or saw blade is sharp.
2. Apply consistent pressure while rotating the cutter around the pipe.
3. Avoid over-tightening, which can deform the pipe.

Deburring Tools: Ensuring Optimal Flow

After cutting, the inside of the pipe often has burrs or sharp edges. Deburring is a critical step to remove these imperfections, as they can restrict water flow and create turbulence within the pipe.

Types of Deburring Tools

Different types of deburring tools are available:

• Files: A simple round file can be used to manually remove burrs.
• Specialized Deburring Tools: These tools are designed specifically for deburring copper pipes. They offer a faster and more consistent result.

Soldering Torches: Creating Strong Joints

Soldering is the primary method for joining copper pipes and fittings. Selecting and using the right soldering torch is crucial for creating strong and leak-proof joints.

Types of Soldering Torches

Common torch options include:

• Propane Torches: These are relatively inexpensive and suitable for small-diameter pipes.
• MAPP Gas Torches: These torches burn hotter than propane torches, allowing for faster soldering of larger pipes.

Safety and Technique

Proper soldering technique is essential. Important safety precautions include:

1. Working in a well-ventilated area.
2. Wearing appropriate protective gear.
3. Applying heat evenly to the fitting and pipe.

Other Essential Tools

Beyond cutting, deburring, and soldering, several other tools are essential for copper work:

• Measuring Tape: For accurate measurement and cutting.
• Markers: For marking cut lines and reference points.
• Sand Cloth: For cleaning and preparing pipe surfaces for soldering.
• Flux Brush: For applying flux evenly to the joint area.

Decoding the types of copper pipes and materials lays the foundation, but proper installation relies heavily on having the right tools. Working effectively with copper pipes requires a specific set of tools and equipment. This section details these essential items, providing guidance on their selection, proper use, and the critical role each plays in achieving reliable and code-compliant plumbing systems.

The Professionals Behind Copper Piping Systems

The integrity of any copper piping system, from residential water lines to complex commercial HVAC installations, hinges not only on material quality and proper tools but also, and perhaps more importantly, on the expertise of the professionals involved. From design to installation and long-term maintenance, a collaborative effort ensures both functionality and safety.

Plumbers: The Installation and Maintenance Experts

Plumbers are the frontline professionals responsible for the tangible implementation of copper piping systems. They are the skilled tradespeople who translate engineering designs into functional realities.

Their work encompasses a wide range of tasks:

• Installation: Precisely cutting, fitting, and soldering copper pipes to create robust and leak-free connections.

• Repair: Diagnosing and rectifying issues such as leaks, corrosion, or damage to ensure system integrity.

• Maintenance: Conducting routine inspections and preventative measures to prolong the lifespan of the piping system.

Plumber certification and training are not merely formalities. They are crucial indicators of competence and adherence to industry best practices. Certified plumbers possess the knowledge and skills necessary to:

• Interpret blueprints and technical specifications accurately.

• Select the appropriate materials and techniques for specific applications.

• Comply with local plumbing codes and regulations.

• Troubleshoot complex problems effectively.

The value of a qualified plumber cannot be overstated; they are the cornerstone of a well-functioning and safe copper piping system.

Engineers: Designing for Efficiency and Safety

Mechanical and civil engineers play a pivotal role in designing copper piping systems, approaching the task with a focus on efficiency and safety.

Their responsibilities include:

• System Design: Creating detailed plans that specify pipe sizes, layouts, and materials based on factors like flow rates, pressure requirements, and building codes.

• Performance Modeling: Using sophisticated software to simulate system performance, optimizing for energy efficiency and minimizing pressure drops.

• Structural Integrity: Ensuring that the piping system can withstand the stresses of daily operation, including thermal expansion and contraction, and external loads.

• Code Compliance: Ensuring the design meets all relevant building codes and regulations.

Engineers make informed decisions based on:

• Flow Rate Calculations: Accurately determining the required pipe sizes to deliver adequate water or other fluids to all fixtures and equipment.

• Pressure Drop Analysis: Minimizing energy losses due to friction within the pipes, reducing pumping costs, and ensuring optimal system performance.

• Material Selection: Specifying the appropriate type of copper pipe (Type K, L, or M) and fittings based on pressure rating, temperature requirements, and environmental conditions.

Engineers are important in the success of copper pipe systems

Building Inspectors: Ensuring Code Compliance and Safety

Building inspectors are the gatekeepers of code compliance, acting as independent overseers to ensure that copper piping systems meet all applicable regulations. Their role is critical in safeguarding public health and safety.

Building inspectors do the following:

• Plan Review: Examining engineering designs and blueprints to verify compliance with plumbing codes and standards.

• On-Site Inspections: Visiting construction sites to visually inspect the installation of copper piping systems, checking for proper materials, techniques, and workmanship.

• Enforcement: Identifying and correcting code violations, ensuring that all deficiencies are addressed before the system is put into service.

Their responsibilities encompass:

• Material Verification: Confirming that the correct type of copper pipe and fittings are used for the intended application.

• Joint Inspection: Scrutinizing soldered joints for proper execution, ensuring they are leak-free and structurally sound.

• Pressure Testing: Witnessing pressure tests to verify the integrity of the piping system and identify any potential leaks.

Ultimately, building inspectors serve as a crucial line of defense, protecting building occupants from the risks associated with faulty or non-compliant plumbing systems.

In conclusion, the successful implementation and long-term performance of copper piping systems depend on the collaborative expertise of plumbers, engineers, and building inspectors. Each professional plays a distinct yet interconnected role in ensuring functionality, efficiency, and safety. Their collective efforts are essential for delivering reliable and sustainable plumbing solutions for both residential and commercial applications.

So, when deciding between type L copper vs type K, really think about your specific plumbing needs and local codes. Considering water pressure, soil conditions, and whether you’re tackling a repair or new install will point you to the right choice. Hopefully, this has clarified the key differences and you can now confidently select the best copper pipe for the job!