As a building or excavating contractor, you likely install numerous septic systems throughout the year. For such projects, you'll need to decide whether to install a concrete or plastic tank. The choice you make could impact client satisfaction and the number of repairs you'll need to perform. Here are some reasons why a concrete septic tank is preferable to plastic.

What Are the Advantages of Concrete Tanks?

Concrete tanks are exceptionally durable. They can withstand environmental factors such as tree roots and changes in the surrounding soil without sustaining damage. The concrete also won't be impacted by the heavy weight of construction equipment, including pumping trucks. 

You can expect a concrete septic tank to last 40 years or more. Concrete tanks feature higher effluent levels, keeping improperly treated liquid waste from being pushed prematurely out of the tank and into the drain field. Also, unlike steel tanks, concrete does not rust.

Why Are They Better Than Plastic Tanks?

Plastic tanks are inexpensive, lightweight, easy to install, and resistant to rust. However, their light construction means they're susceptible to damage due to crushing weight on the surface above them, changes in the soil, or vibrations through the earth. 

Additionally, they're vulnerable to tree roots, cracks due to frost, burrowing animals, and ground heaves. They also have a tendency to "float" to the surface if the water table is high in the area. They do not typically last quite as long as concrete tanks do, with the average plastic tank lasting between 30 and 40 years. 

If you're a contractor seeking a reliable supplier of concrete septic tanks, contact Politte Ready Mix LLC in Potosi, MO. They also maintain locations in Farmington, Arcadia, Bonne Terre, and Viburnum. They're family-owned and -operated and have served Central Missouri since 1973. In addition to septic systems, they also specialize in ready-mix concrete, sand, gravel, rebar, and wire mesh. Learn more about them on their website, or call (573) 438-5417 to discuss septic tank sizes and pricing.