Mastering Plumbing with Plastic

Are you tired of dealing with rusty metal pipes in your home? Plastic pipes offer a great solution to this common problem. In this blog post, we’ll explore how mastering plumbing with plastic can help keep your water flowing smoothly and save you money.

Keep reading to find out how.

Understanding Plastic Plumbing Systems

Mastering plastic plumbing systems starts with learning about the variety of pipes and fittings available. Knowing how to properly support these pipes ensures their safety and longevity in your home’s plumbing network.

Guide to Plastic Pipes & Fittings

Plastic pipes and fittings provide a modern, corrosion-resistant option for plumbing systems. They connect easily, whether with other plastic components or metal pipes, avoiding the risk of harmful chemical reactions.

This compatibility makes them an excellent choice for diverse plumbing projects. From municipal water supply to septic systems, plastic piping offers adaptability and durability that many installers prefer over traditional materials like copper.

Choosing the right type of plastic pipe—PVC (polyvinyl chloride), PEX (cross-linked polyethene), or ABS (acrylonitrile butadiene styrene)—depends on the project requirements.

PVC pipes excel in drain, waste, and vent applications due to their strength and resistance to chemicals. For hot water lines, plumbers often opt for CPVC (chlorinated polyvinyl chloride) because it can withstand higher temperatures than standard PVC.

Meanwhile, PEX tubing is prized for its flexibility and ease of installation in tight spaces or areas requiring many bends. Each type has specific fitting sizes available to ensure a secure connection without leaks.

Pipe Support for Safety

Pipe supports play a critical role in ensuring the safety and longevity of plastic plumbing systems. They help carry the weight of fluids, preventing pipes from sagging, bowing, or breaking due to excessive pressure.

Proper installation of supports is essential to comply with rigorous plumbing codes and certification standards that guide the plastic pipe industry.

Supports also protect against water damage by maintaining the integrity of plumbing leaks. By distributing the load evenly across pipes, these supports reduce stress at joints where breaks are most likely to occur.

This safeguard extends to all types of installations, including those involving high-density polyethene (HDPE) pipes known for their corrosion resistance. Ensuring that every section of piping has adequate support minimizes potential issues like water leaks and sewer gas escape, contributing significantly to a safe and efficient drainage system.

Advantages of Plastic Plumbing

Plastic plumbing systems offer significant advantages over their metal counterparts. They are lighter, easier to install, and resist corrosion, setting a new standard for modern construction projects.

How Plastic Pipes Outperform Metal Pipes

Plastic pipes offer a major advantage over metal pipes in terms of cost and ease of installation. They come at a lower price and do not require the complex soldering or brazing processes needed for copper or steel pipes, making them more accessible for DIY projects as well as professional plumbing tasks.

Additionally, their lighter weight reduces transportation energy needs and associated greenhouse gas emissions.

Corrosion resistance is another key benefit that plastic pipes have over their metal counterparts. Metal pipes, including those made from galvanized steel or copper, can corrode over time when exposed to water and certain chemicals.

This corrosion can lead to leaks, reduced water quality, and eventually the need for replacement. In contrast, materials like PVC stay durable against such elements, ensuring that plumbing systems remain efficient and safe for longer periods without the risk of corrosion-related issues.

Environmental & Cost Benefits

Using plastic pipes like PVC and CPVC reduces the overall costs of plumbing systems because these materials are cheaper to produce. They require less energy for manufacturing, which cuts down greenhouse gas emissions from production processes.

This makes plastic plumbing a more environmentally friendly option compared to using metals like copper that need more resources for their production and transport.

Choosing plastics for plumbing also means lighter materials, which translates into energy savings during transportation. These lighter pipes are easier and faster to install than their metal counterparts, leading to lower labour costs.

With less time needed for installation, projects can be completed quicker, further reducing expenses associated with prolonged construction activities.

Disadvantages of Plastic Plumbing

Plastic plumbing might not suit every situation due to its limitations in withstanding extreme temperatures. Certain types of plastic pipes can also become less effective over time, especially if exposed to direct sunlight or chemicals.

Situations Where Plastics Are Not Ideal

In tight spaces where every inch counts, plastic plumbing might not be the best choice. These pipes are bulkier than their metal counterparts, making it hard to fit them into small areas.

If you’re dealing with a cramped spot behind a sink or remodelling a tiny bathroom, copper pipes with their smaller profiles could be the way to go.

Exposure to high temperatures can also spell trouble for plastic plumbing systems. Certain types can warp if they get too hot, which is risky near boilers or in environments that see extreme temperature fluctuations.

Since plastics don’t handle heat as well as metals do and have significant thermal expansion and contraction, this makes them less ideal in settings where temperature control is critical.

Comparing Different Types of Plumbing Pipes

Before diving into the complexities of plastic plumbing, understanding the differences among various types of plumbing pipes is essential. Below is a concise comparison highlighting key features and uses of each type.


Type of Pipe Material Main Uses Key Features
PEX Pipes Cross-linked Polyethylene Water supply lines Flexible, durable, can handle high water pressure
PVC Pipes Polyvinyl Chloride Drainage, potable water transport Corrosion-resistant, versatile
CPVC Pipes Chlorinated Polyvinyl Chloride Hot and cold water lines More flexible than PVC, handles higher temperatures
ABS Pipes Acrylonitrile Butadiene Styrene Drain and vent lines Strong, resistant to cold temperatures
Polyethylene Pipes Polyethylene Mainly for outdoor, agricultural uses Flexible, good for water distribution

This table offers a brief comparison to help decide which plumbing pipe might be best for specific projects, highlighting the diversity and adaptability of plastic pipes in modern plumbing systems.

Types of Plastic Pipes

Exploring the different kinds of plastic pipes can significantly improve your plumbing projects. Each type offers unique benefits and applications, making it essential to choose wisely for specific tasks.

PVC Pipes

PVC pipes, commonly used in plumbing, are made from a type of plastic known for its strength and durability. They come in several variations including PVC-U (unplasticized PVC), which is rigid and often used for construction purposes; C-PVC (chlorinated PVC) that withstands higher temperatures; PVC-O (molecular oriented PVC), recognized for superior pressure resistance; and modified PVC that offers enhanced flexibility.

These pipes are favoured in the plumbing industry due to their lightweight nature, reducing the energy needed for both production and transportation.

These pipes significantly lower carbon footprint thanks to their efficient manufacturing process which demands minimal resources. The production of PVC pipes consumes less energy, thereby minimizing greenhouse gas emissions associated with their transport and creation.

This aspect makes them an eco-friendly option for modern plumbing systems, covering everything from water supply to drainpipes connecting sinks and showers. Their corrosion resistance also ensures longevity, saving homeowners on costs related to replacements or repairs of corroded metal piping over time.

PEX Pipes

PEX pipes, short for cross-linked polyethene, have become a popular choice in the world of plumbing. Suitable for hot and cold water supply lines, these flexible plastic tubes easily adapt to various configurations without the need for soldered joints.

Their ability to transport hot water without risk of melting makes them ideal for modern plumbing needs, ensuring safety and reliability as NSF/ANSI 14 certified components.

Thanks to their versatility and environmental benefits, PEX piping systems offer an alternative to traditional copper models with less impact on the environment. The design lends itself well to easy installation in tight spaces where other pipes cannot go, making it a favourite among plumbers and DIY enthusiasts alike.

ABS Pipes

ABS pipes, short for Acrylonitrile Butadiene Styrene pipes, are widely recognized for their durability and ease of installation. They stand out in the plumbing world because they’re made with bisphenol A (BPA), which makes them tougher and more resistant to impacts.

These characteristics make ABS pipes a popular choice for drainage, waste, and vent applications in both residential and commercial settings.

Despite their strengths, ABS pipes have sparked controversy due to environmental concerns linked to the presence of BPA—a chemical under scrutiny for potential health risks. Nevertheless, professionals often choose ABS over PVC pipes for certain plumbing fixtures because of their straightforward installation process and superior heat resistance.

These features ensure that ABS remains a go-to option for projects requiring reliable plumbing solutions that can withstand various conditions.

Tips to Master Plastic Plumbing

To master plastic plumbing, always prioritize regular maintenance to avoid unexpected issues. Learn the correct techniques for connecting different types of plastic pipes to ensure a leak-free system.

Avoid Overwhelming Your Plumbing System

Always run water while the garbage disposal is running. This simple step helps keep your plumbing system from getting overwhelmed. Overloading systems with too much waste without adequate water can cause serious blockages and damage, leading to expensive repairs.

Considering the differences between plastic and copper pipes plays a crucial role in preventing system overload. Each material has its unique benefits that could impact how well your plumbing handles pressure and usage.

For instance, HDPE pipes are known for their durability under high pressure, making them an excellent choice for avoiding overwhelming situations. Being mindful of these choices ensures a smooth operation of your plumbing setup without pushing it beyond its limits.

Preventive Care for Plastic Plumbing

Preventive care for plastic plumbing ensures the system runs smoothly and lasts longer. Regular maintenance can help avoid common problems such as leaks or damage.


  1. Use sharp blades to cut PVC pipes: Dull blades can crush the pipe instead of cutting it, leading to uneven connections that might leak.
  2. Secure PVC pipes with straps during installation: This prevents slipping and misalignment, ensuring a stable setup.
  3. Trim the ends of plastic pipes properly: A clean cut ensures that the fitting sits snugly, minimizing the risk of leaks.
  4. Choose the right pipe size for your project: Using the correct diameter ensures optimal flow and reduces strain on your plumbing system.
  5. Apply plastic pipe cement correctly: Without adequate cement, PVC, CPVC, and ABS pipes can disconnect, causing water damage.
  6. Ensure corrosion resistance with plastic systems: Unlike metal, plastics won’t corrode when exposed to household chemicals or water.
  7. Clean and dry fittings before glueing: Use sandpaper or a chemical cleaner to prepare surfaces for a secure bond.
  8. Inspect joints regularly for signs of wear or leaks: Catching issues early can prevent more extensive repairs down the line.
  9. Avoid overloading your plumbing system: Be mindful of how much waste your pipes are handling at once, especially from appliances like washing machines and dishwashers.
  10. Protect your plumbing from cold weather by insulating pipes: This helps prevent freezing and cracking in low temperatures.
  11. Schedule professional inspections occasionally: A plumber can spot potential issues you might miss and provide solutions before they escalate.

By adopting these preventive measures, homeowners can ensure their plastic plumbing remains reliable and efficient over time.

Handling Cold Weather Issues with Plastic Pipes

Plastic pipes face challenges in cold weather. PVC pipes, for example, do not fare well in freezing temperatures and their impact strength decreases when it gets colder. Here’s how you can handle these issues:


  1. Insulate your plastic piping to protect it from the cold. Insulation keeps the heat in and prevents the pipes from becoming brittle in low temperatures.
  2. Use heat tape on vulnerable sections of your plumbing system. Wrapping pipes with heat tape provides an extra layer of warmth, preventing them from freezing.
  3. Install a water heater closer to areas prone to freezing. This ensures that hot water circulates through these areas more frequently, reducing the risk of freezing.
  4. Keep indoor temperatures consistent during colder months. Ensuring your home’s temperature doesn’t drop too low helps maintain a warmer environment around your plastic pipes.
  5. Opt for PEX pipes in areas known for harsh winters. PEX piping is less likely to burst or freeze due to its flexibility and resistance to cold temperatures.
  6. Regularly check pipe insulation for damage or wear. Damaged insulation won’t protect your pipes effectively, so replace it as needed to maintain optimal performance.
  7. Open cabinet doors under sinks on very cold nights. This allows warmer air to circulate the plumbing, reducing the risk of freezing.
  8. Let faucets drip slightly during extreme cold snaps. A small flow of water can prevent pressure build-up and reduce the chance of bursting.
  9. Seal cracks and holes in exterior walls where pipes run through. Preventing cold air from reaching your pipes is key to avoiding freezing problems.
  10. Schedule professional inspections before winter arrives. Experts can identify potential weaknesses in your plumbing system and recommend solutions before the cold sets in.

When to Engage a Professional

Knowing when to call in a professional plumber is crucial for maintaining the integrity of your plastic plumbing system. Explore more to ensure your plumbing remains in top condition.

Importance of Professional Inspection

Professional inspections catch potential problems in your plumbing system before they escalate. Regular checks by a trained professional can prevent costly emergencies, saving you time and money.

Home inspectors have the expertise to spot when plumbing pipes and fittings are improperly used, which could lead to leaks or more significant damages later.

Having your plumbing system inspected regularly not only flags issues early on but also provides peace of mind. For those selling their homes, an inspection can be a strong selling point, assuring prospective buyers of the home’s plumbing health.

This preventive measure plays a critical role in averting major disasters by alerting homeowners to fix small problems before they turn into catastrophic failures.

Hiring a Professional Plumber

Hiring a professional plumber can make a huge difference in your plumbing project. They bring expertise, safety, and efficiency to the table that DIY efforts often cannot match.


  • A professional plumber ensures safe installation, minimizing risks of accidents. They understand the complexities of plumbing systems and work to prevent potential hazards.
  • They use specific tools for various plumbing tasks. The right equipment is essential for achieving perfect results, whether it involves welding pipes or installing a valve.
  • Long-lasting solutions come standard with professional plumbers. Their experience allows them to identify and fix problems in ways that endure over time.
  • Adhering to strict safety standards is part of what licensed plumbers do. This adherence gives homeowners peace of mind, knowing their plumbing system complies with all regulations.
  • Time and money savings are significant benefits. Homeowners avoid the expense and hassle of renting specialized tools like drain snakes or pressure regulators.
  • Homeowner safety gets a boost from professionals. Attempting DIY repairs can lead to mistakes; professionals eliminate such risks.
  • Professionals come fully equipped to handle any situation, greatly reducing the risk of injuries that might occur from improper handling or use of plumbing equipment.

Opting for a professional plumber translates into quality workmanship backed by knowledge and proper tool usage, ensuring that your home’s plumbing system functions optimally while adhering to safety standards.


Mastering plumbing with plastic offers several advantages, from corrosion resistance to easier installation. Plastic pipes bring cost savings and environmental benefits, making them an excellent choice for many homeowners.

For those facing cold climates, their reduced likelihood of freezing can be a significant advantage. Mastering these systems requires understanding the right practices and when to call in professionals for help.

With the right approach, anyone can efficiently use plastic plumbing systems for reliable and effective water management in their homes.


1. What is DWV and why is it important in plumbing?

DWV stands for Drain, Waste, and Vent systems in plumbing. It’s crucial because it helps remove waste water and gases from buildings, ensuring that water flows smoothly without any blockage.

2. Can I use plastic pipes for hot water systems?

Yes, you can use Chlorinated Polyvinyl Chloride (CPVC) pipes for hot water systems. CPVC can withstand higher temperatures than other plastic pipes, making it perfect for carrying hot water.

3. How do I connect plastic pipes to my plumbing system?

There are several ways to connect plastic pipes, including using compression fittings which squeeze the pipe to hold it in place or by welding them together with a special kind of glue or filler metal designed for plastics.

4. Should I paint or apply zinc coating on my plastic plumbing?

No need! Unlike metal piping which might require paint or zinc coating to prevent rusting and corrosion, plastic piping does not corrode so there’s no need to apply any protective coatings like paint or zinc.

Leave a Comment

Your email address will not be published. Required fields are marked *