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How drainage works: a guide by Allen Plumbing & Gas

Drainage grate on an asphalt road

At Allen Plumbing & Gas, we understand that the intricacies of your home’s infrastructure are crucial to its smooth operation. Just as we keep up to date with changing of gas and plumbing standards to ensure your safety, we also specialise in the complexities of drainage systems. 

As a home or business owner, you will have a drainage system or two throughout your property. Understanding how these work means you can be better informed about your repair and maintenance obligations. So, let’s explore how drainage works and you can appreciate the silent yet essential systems that keep your property comfortable and hygienic.

The fundamentals of a drainage system

A well-designed drainage system is vital for disposing of wastewater efficiently and maintaining a clean environment. Understanding how drainage works involves recognising the journey water takes from the moment it swirls down your drain to when it reaches municipal treatment facilities, or your personal septic system.

The path of wastewater

Anytime you use water in your property, whether it’s flushing the toilet or washing dishes, the used water becomes wastewater. This wastewater exits through a series of pipes connected to your fixtures, relying on gravity to guide it away from your property. These pipes converge into larger sewer lines that form an interconnected network, ultimately leading to a sewage processing plant or septic tank.

Types of drainage

There are two main types of drainage: surface and subsurface. Surface drainage handles rainwater and melting snow, directing it into storm sewers or natural waterways. Subsurface drainage, also known as sewer plumbing, deals with household wastewater, ensuring it’s transported safely and effectively to avoid contamination and health hazards.

Ventilation: ensuring efficiency and safety

Ventilation is a critical component of any drainage plumbing system. Vents allow air to enter the pipes, equalising pressure and preventing vacuum formation that could disrupt water flow. Proper ventilation also ensures that sewer gases are safely expelled through vent stacks, typically located on the roof.

Traps: the first line of defence

Each fixture has a trap—a U-shaped pipe that retains a small amount of water after each use, creating a seal against sewer gases. These traps are simple but vital elements that prevent odours and potentially harmful gases from entering your living spaces.

Regular maintenance: the key to longevity

To keep your drainage system functioning at its best, regular maintenance is essential. Allen Plumbing & Gas recommends being cautious about what goes down your drains and scheduling routine inspections to identify and address any issues before they escalate.

Trust Allen Plumbing & Gas for your drainage needs

Understanding how your home’s drainage works is more than just plumbing knowledge—it’s peace of mind. As trusted experts and market leaders, Allen Plumbing & Gas is dedicated to ensuring that your drainage system operates flawlessly. Our team of skilled professionals is equipped to handle all aspects of drainage plumbing, from routine maintenance to emergency repairs.

If you’re experiencing drainage issues or simply want to ensure your system is in top shape, reach out to us. With our expertise in how drainage works and our commitment to quality service, Allen Plumbing & Gas is your go-to partner for all your plumbing needs.