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trenchless sewer repair

Your home will have a number of different types of plumbing pipes made from a variety of materials. The type used in a specific application and setting will largely depend on the age of the plumbing system on your property. Older plumbing systems often have galvanized iron or cast iron; but a new home will generally have only plastic pipes of various types. In this article we take a look at the common materials used in home plumbing pipes:


#1 Cast Iron (plumbing waste pipe lines)

Appearance: These are dull black, and heavy metal pipes of a large diameter; they have a mottled surface

These are high-grade sewer drain pipes which are heavy and deaden the sound of the flowing waste water extremely well. Cast iron pipes are extremely resilient and long-lasting but very difficult to cut, often necessitating the use of special cutting tools that have sharp chain cutting wheels. Cast iron isn’t commonly used in new construction.


#2 PVC (Poly Vinyl Chloride) (plumbing waste pipe lines)

Appearance: White-coloured rigid plastic.

PVC has now become the standard pipe material used in residential home waste line installations such as sanitary waste lines, drain traps and vent pipes. It is resistant to chemicals as well as heat; it’s strong yet can be cut and installed easily and is commonly used to repair broken cast-iron waste pipe, and in repairs of drain lines.


#3 Chromed Brass (plumbing waste pipe lines)

Appearance: Bright & shiny chrome-finished pipes of diameter greater than 1 inch

This material is often used in place of PVC in various exposed waste line applications, including drain traps and “P” traps where the appearance matters. It can be easily joined with slip fittings and cut with a hacksaw.


#4 Galvanized Iron (waste line sand water supply lines)

Appearance: Rigid metal pipe that is dull silvery-grey in colour

Galvanized iron pipes used to be a very popular plumbing material in residential water supply lines at one point of time. But these pipes tend to become corroded and rusted with use. This is why galvanised pipes that have become damaged or deteriorated are replaced using PEX plastic pipes or copper pipes.

GI pipes are difficult to cut & join and they come in two types – flexible and rigid. The rigid variant is available in varying wall thicknesses and the application will decide which thickness of pipe will be used. Over the decades, copper has proven to be an extremely reliable and corrosion and rust-resistant pipe. The malleability of its flexible variant is one of the other reasons it is the preferred choice in HVAC installations.


#5 CPVC or chlorinated poly vinyl chloride (used in water supply pipelines)

Appearance: Cream-coloured or dull white plastic.

This is an inexpensive and rigid plastic that is specifically designed to withstand higher temperatures and pressure. CPVC is typically used in the installation of cold and hot water supply piping.

As you can see, there are many different pipe materials used in residential applications. When you are getting any plumbing work that involves pipes on your property, your plumber will provide you with all the details regarding that material, what its pros and cons are and will recommend which material will work best for a specific application.

We at CPC Plumbing can handle all types of plumbing jobs including plumbing and gas pipe installation, maintenance and repair. We use top quality materials and workmanship, which provides you value for money. You can call us on 0413 131 216 or use this online form to send queries and service requests and we will revert within a short time.

Thanks for reading,
CPC Plumbing
0413 131 216

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