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Plastic Septic Tanks For Sale

Explore Our Full Range of Septic Tanks

We offer a full range of plastic septic tanks at Plastic-Mart that range in size from 200 gallons to 3525 gallons. In between, we have plastic septic tanks in 300, 500, 750, 1000, 1250, 1500, 2000, 2500, and 2650-gallon sizes. Regardless of size, all of our plastic septic tanks are constructed from polyethylene resins as a great alternative to concrete.

Our plastic septic tanks are built to last, take half the effort to install, and lower your overall septic tank costs. As a result, they can be used in a wide range of residential and commercial uses, from homes and outhouses to trailers, RV parks, and portable construction buildings. With our extensive experience selling and maintaining plastic septic tanks, we can help you create the perfect septic system that complies with all U.S. health code requirements.

When choosing a plastic septic tank, you’ll have to decide whether you want to use your septic tank above ground or below ground. Underground plastic septic tanks are designed for below ground use only. Using the tanks above ground can result in deformation of the tank. It is far more cost-effective to utilize an above-ground storage tank that is specifically designed for above ground use. We also carry an excellent selection of above ground septic tanks to meet your needs for your convenience.

We’ve Got Options

At the small end of our range, our 200-gallon plastic septic pump tank weighs 80 pounds and comes with dimensions of 47″ diameter x 56″H. Manufactured by Norwesco, this non-plumbed tank (i.e., the tank does not come pre-plumbed) designed for below ground use includes a 20″ manway with a watertight lid and a pump stand molded into the bottom.

Our 3525-gallon underground holding tank from Norwesco is manufactured from linear polyethylene as part of a one-piece, seamless construction. Made from 100 percent virgin polyethylene plastic, this tank is designed for underground fresh potable water storage and underground rainwater storage applications.

While septic tanks are suitable for wastewater systems, keep in mind that several important regulations apply for these systems. Across the United States, there are many health code requirements that septic tanks must meet. These codes are regulated by the state or county where you are located. For example, as a general rule, plastic septic tanks may not be used to store chemicals intended for human consumption. And you can’t install a septic tank under a driveway, a pathway, or an area of vehicular traffic, or it will void the warranty.

One Vs. Two-Compartment Septic Tanks

You’ll also need to choose between one compartment and two-compartment septic tanks. Aside from differences in capacity between the one and two-compartment septic tanks, water flows and collects in the tank are distinct. A second compartment allows more room to settle the solids and liquids in the tank. In a single compartment tank, one chamber holds all the liquid, sludge, and scum. Adding a second compartment provides an additional area for your sludge and liquid to exist. An extra compartment also gives you more space and more time before you need to empty the tank.

Call Plastic-Mart For The Best Septic Tank Options

With Plastic-Mart, we make it convenient to pick up a plastic septic tank nearby. Assistance is always a phone call away, as our representatives are happy to help you choose the best plastic septic tank option for you. Call us 24/7 at the following toll-free number: 1-866-310-2556.