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The Most Common Sewer System Types and their Features


Every sewer system type has one purpose and that is to ensure that both solid and water wastes are taken out the household and properly disposed of. However, each sewer system has its own unique way in dealing with the sewage wastes. Aside from that, each type of sewer system has its own design, structure, operation costs, maintenance, as well as suitable application. The items that are listed below are the most common sewer types, and a brief collection of information about their features, advantages and disadvantages.
Separate Sewer Types

A bunch of you may be wondering what’s “separate” in separate sewer types? It’s actually the drains of the stormwater and wastewater that is referred to by this sewer system. The main advantage of this design is that there will be a pipeline that is focused in mainly disposing wastewater and another one for stormwater. It’s applicable and very suitable if the area that you’re living experiences floods and rainy weather throughout the year. Since there two separate pipes, the risk of sewer overflow is very low or non-existent. Aside from that, you won’t be experiencing any sewer smells, mosquitoes and fly swarms, and even sewer health concerns if you have a separate sewer system. Also, there are no issues in disbursing industrial wastewater.

Separate types are excellent sewer system but it comes with a few drawbacks. Maintaining this sewer system can be costly since you actually need to hire a bunch of sewer engineers to fix any issue as well as having maintenance. Also, the capital expenses in setting up sewer type system are very expensive. In fact, it’s even pricier than a combined sewer system (another sewer type which will be discussed later). Lastly, it’s extremely difficult to install a separate sewer system in areas that have many infrastructure and high population.


Combined Sewers

A combined sewer type is quite the opposite of separate sewer systems since it combines both the wastewater and stormwater pipes, and thus, making it more manageable. It doesn’t require any maintenance from the users which makes it ideal for anyone who doesn’t want to tinker too much with their sewer system. You also don’t have to worry about sewer smells, sewer insects, and other health hazards brought by sewage since a combined sewer system are one of the most safest and sanitary sewer systems out there. Just like separate sewers, it doesn’t have any issue in dealing with industrial wastewater.

It has a number of issues like being impossible to do maintenance or fixes on your own since professional sewer repairmen are needed due to the intricate sewer system. The capital expenses of a combined sewer are also high, but it’s actually cheaper compared to separate types. It’s also a challenge to construct this sewer system in populated areas. The maintenance is something that is also costly. If you plan on upgrading, modifying, or constructing a new sewer system, make sure to hire the best experts so that the project output will be successful and top notch.