What Is a Septic Tank? Everything You Need to Know About How It Works

Introduction

If you live in a rural area or off the main sewer system, you’ve probably heard the question: What is a septic tank? A septic tank is a key part of a private sewage system. It helps manage wastewater from homes or buildings that aren’t connected to public drainage.

In this blog post, we will outline the basics of how a septic tank works, the advantages of a septic tank, and what to consider when installing a septic tank. We will also discuss why it can be beneficial to have a reputable supplier, such as Roto Moulders, to make the process a lot easier.

What Is a Septic Tank?

A septic tank is a below-ground structure for collecting and processing wastewater. Wastewater encompasses all the flow from any drain to the public sewer through sinks, toilets, showers, and washing machines. Rather than sending this waste to the public sewer, the septic tank collects it on-site and begins processing it. 

The basic purpose of a septic tank is to separate solids and liquids. Solids settle to the bottom of the tank and form a mass called sludge. Liquids that are oils and greases rise to the top of the tank and form a very thick layer commonly called scum. Finally, the remaining liquid layer (effluent) is slowly emptied from the tank into a distribution chamber and then into a drainage field. Effluent is purified by natural filtration once it is in the soil.

How Does a Septic Tank Work?

The process is simple but effective. When wastewater enters the tank, the solid waste settles while the liquid flows out. Over time, bacteria in the tank help break down the waste, making the system self-contained and eco-friendly.

However, to keep it working properly, septic tanks need to be emptied—usually every 2 to 3 years, depending on the size of the tank and household use.

It’s also important that the system is well-ventilated and properly installed. If not, it can lead to blockages, bad smells, or even damage to your garden or property.

Why Septic Tanks Are Still Important?

With rising demand for housing in rural areas, septic tanks remain a popular and practical solution. They don’t rely on large-scale sewer systems, which often aren’t available in less developed regions. This makes them ideal for farms, remote homes, and off-grid living.

They also give homeowners more control over waste management. If maintained well, a good septic system can last for decades and reduce the risk of pollution or sewage leaks.

Choosing the Right Tank

The size and type of tank you need will depend on your household size, soil condition, and usage levels. Some tanks are made from concrete, while others are built using plastic or fibreglass.

Plastic tanks are popular today due to their strength, low weight, and easy installation. They don’t rust or crack easily and can be moved without heavy machinery. Many top septic tank manufacturers now focus on high-quality plastic tanks for these reasons.

Before buying a tank, make sure it meets local health and safety standards. Also, check if the supplier provides support with installation and long-term maintenance.

Why Choose Roto Moulders?

At Roto Moulders, we’ve been helping Kenyans manage their water and waste systems for years. As one of the leading septic tank manufacturers in the region, we know what it takes to produce tanks that last, even in tough environments.

We offer a wide range of plastic septic tanks in various sizes to suit homes, businesses, and farms. Our tanks are made using rotational moulding technology, which gives them a strong, seamless finish. This makes them resistant to leaks, cracks, and ground pressure.

We also guide you in selecting the right tank based on your needs, and our team is always ready to assist with product knowledge, delivery, and technical support.

Invest in a Long-Lasting Septic System Today

So, what is a septic tank? It’s a vital part of any off-grid home or building, helping you manage waste in a safe and simple way. With the right tank and proper care, your system can serve you for many years without trouble.

If you’re ready to install a reliable system or upgrade an old one, get in touch with Roto Moulders today. Visit www.rotomoulders.com to explore our full range of septic solutions or speak with our experts for free advice. We’re here to help you find the perfect fit—built for your home, built to last.

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