The Pipe Surgeon – A Short Explanation of How Your Home’s Drain-Waste-Vent System Works

The Pipe Surgeon discovered a passion for plumbing when he was studying at vocational school.

Drain pipes use gravity to remove wastewater from fixtures such as sinks, bathtubs, and showers, as well as appliances such as washers and dishwashers. Drain pipes connect to a private septic tank or a municipal sewer system.

The Pipe Surgeon

Modern drain pipes are mostly made of plastic. If you live in an older home, your pipes may be made of copper, lead, steel, or iron. Drain pipes pose no health hazards because they are not a part of your home’s water supply system. That being said, lead pipes are no longer produced for use in home plumbing systems.

Drain pipes range in diameter from one-and-a-quarter inches to four inches in diameter. The larger the diameter of a pipe, the more efficiently wastewater can pass through it.

Every drain in your home has a trap. Traps play a very important role in the drain system because they prevent waste gasses from entering the air of your home. A trap is a curved section of a drain pipe that has standing water in it.

Traps are usually located right next to drain openings in sinks and other fixtures and appliances. The water in a trap is flushed away and replaced with new wastewater each time you use a drain.

Drain systems need air to function properly. Air lets water flow freely through the pipes. This is why drain pipes are connected to vent pipes. This system is called a drain-waste-vent (DWV) system. The air opening that allows the DWV system to work is usually located on the roof. Should you have any problems with your DWV system, call the Pipe Surgeon and he will fix it for you.

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Author: The Pipe Surgeon

The Pipe Surgeon is an experienced main drain plumbing maintenance and service contractor. The main plumbing line into the house serves as a source of water but also acts to cycle out used, gray water. We inspect this drain line and make sure it is free of blockages while also ensuring the pipes and fixtures are sound and in excellent working condition.