large sewer pipes

Sewer Pipes

One of the most costly and inconvenient home plumbing difficulties is repairing or replacing a sewage line on your property. The quality and type of materials utilised in your drains, as well as the craftsmanship level of the plumber or plumbing firm you hired, are the first and most important factors affecting the durability of your plumbing systems. 

Agru Australia provides the best high quality piping system and fittings for your drain and sewer systems. By understanding what type of sewer pipe you have, you can better figure out what may be causing issues with your sewer and drain system. A brief review of sewer pipes and their sizes and uses follows.

large sewer pipes

What is a Sewer Pipe?

Sewer pipe is a water drainage system that carries waste water away from buildings. A sewer pipe is made up of two parts,

  • A main drain pipe that runs underground
  • An outfall pipe that leads to a public sewer line

Main Drain Pipes: A main drain pipe is usually installed underneath a building’s foundation. This type of pipe is typically made of concrete, brick, steel, or plastic. 

Outfall Pipes: An outfall pipe connects a main drain pipe to a public sewer line. This type of piping is usually made of cast iron, PVC, or concrete.

A sewer system consists of three major components namely, the sanitary sewer, storm sewer and combined sewer. The sanitary sewer collects household wastes while the storm sewer carries away surface run off. The combined sewer collects both the flows of sanitary and storm sewers.

Sewer lines are inspected periodically to make sure they are working properly. Sometimes, the inspection involves removing sections of the pipe to see if there are any leaks.

Types of Sewer Pipe

The majority of today’s home drain pipes are made of copper or polyvinyl chloride (PVC) or acrylonitrile butadiene styrene (ABS). Drain/waste/vent (DWV) piping constructed of iron or steel is occasionally seen in pre-1960 houses. Commonly used sewer pipes are,

  • Plastic Sewer Pipes
    • PVC and ABS
  • Cast Iron Sewer Pipe
  • Concrete Sewer Pipes
  • Corrugated Drain Pipes

Plastic Sewer Pipes

Plastic sewer pipes are less expensive than concrete sewer pipes. They’re also easier to install, but they tend to crack over time. Today’s underground sewer lines usually use two different types of plastic pipes. Both PVC and ABS have similar properties, however they use different chemical codes and adhesives. 

PVC (polyvinyl chloride) and ABS (acrylonitrile butadiene styrene) are two of the newest-generation piping that is increasingly used in houses. Among the most durable and long-lasting pipes, PVC and ABS piping are rust proof, cost effective, smooth and versatile.

Cast Iron Sewer Pipe

Cast iron sewer pipes are the strongest type of sewer pipe available. They’re ideal for areas where there is heavy traffic, such as parking lots. They’re usually installed with vertical drains. Due to their uneven interiors, cast iron sewer pipes are susceptible to corrosion and rust, as well as waste buildup.

Concrete Sewer Pipes

Concrete sewer pipes are the most commonly used type of sewer pipe. They’re durable, affordable, and easy to install. However, concrete sewer pipes aren’t suitable for all applications. For example, concrete sewer pipes cannot withstand freezing temperatures. Concrete has been used both as an encasing for clay pipes and as a piping material itself.

Corrugated Drain Pipes

Drain pipes made of corrugated materials are most often utilised for outdoors drains rather than indoors ones. Metal, plastic, and other materials can all be used to construct corrugated drain pipes. 

How does a Sewer Pipe Work?

Sewer lines are usually buried underground to prevent damage to the pipe. Sewer line construction involves digging trenches, laying pipe, backfilling the trench, and sealing the surface. This method requires excavation and backfill material. However, there are other methods of constructing a sewer line without excavating the ground. These methods do not require digging trenches and backfilling. Instead, they involve using precast concrete segments. Precast segmented sewer pipes are constructed using a casting machine. The segmented pipes are then assembled together to form a continuous sewer line. In this case, no backfill is required.

When sewage enters a home through a toilet, sink, or shower, it flows into a main drain pipe. From here, the sewage travels down a series of smaller pipes called lateral drains until it reaches an outfall pipe. Piping systems are connected to each other using fittings. Fittings are either male or female depending upon the direction of flow. They are installed in pairs to ensure proper drainage. The fitting is attached to the pipe using an adhesive sealant. Once the fitting is properly sealed, the joint is protected against corrosion. Adequate protection is necessary because sewer pipes are exposed to harsh conditions such as rainwater, snowmelt, and extreme temperatures.

Sewer pipe installations are carried out in accordance with local building codes and standards. When a new house is built, the builder must install a sanitary sewer line. This line receives the flow of wastewater from toilets, sinks, bathtubs and showers. Storm sewer lines collect the flow of surface runoff from streets, driveways and parking lots. Combined sewer systems receive the flow of both sanitary and storm sewages.

Size of Sewer Pipes

Sewer pipes come in various sizes depending upon the location where they are placed. Different sizes of sewer pipes are needed for different applications. For example, small sewers pipes are needed for residential purposes while large sewers pipes are required for commercial buildings. Sewer pipe sizes vary from 1 inch to 20 inches. The size of the pipe depends on the amount of water flow per day. The larger the pipe diameter, the higher the capacity.

Application of Sewer Pipes

Sewer pipes play an important role in our day-to-day life. They are used for many purposes such as transportation of waste water, drainage of rainwater, collection of stormwater runoff etc.

Choose Agru Australia for the best pipes and fittings if you need to repair or replace old drains. We propose more cost-effective options that won’t burden your budget, as well as ideal solutions for drainage issues. For all of your plumbing and heating needs, contact Agru Australia.

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