Septic
Septic Tanks
Tank Depot proudly offers a wide selection of septic tanks from leading brands, including Ace Roto-Mold, Norwesco, and Snyder Industries. Our septic tanks are engineered to provide durable, long-lasting solutions for both residential and commercial wastewater management systems....
Made from high-quality, rotomolded polyethylene resins, our plastic septic tanks are not only cost-effective but also incredibly robust, designed to withstand underground pressures and resist corrosion.
Whether you’re installing a new septic system or upgrading an existing one, our tanks are easy to install and available in a variety of sizes and gallon capacities to suit your specific needs. From small residential setups to large commercial systems, we have the right solution to ensure your septic system runs efficiently for years to come. Each tank features a ribbed design for enhanced structural strength, making them ideal for in-ground applications.
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Septic Tank Size Calculator
Use our easy-to-use Septic Tank Size Calculator to determine the ideal tank capacity for your septic project.
Disclaimer: This calculation is an estimate, please consult with your local designer/installer or local county for accurate tank size in your area.
**We are assuming an average of 2 people per bedroom, with an average wastewater generation of 75 gallons per person.
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Need a Septic Tank Installation?
We’ve got you covered. We service the following counties in TX:
Bexar, Kendall, Comal, Guadalupe, Wilson, Atascosa, Medina, Travis, Williamson, Hays, Bastrop, and Caldwell.
✔ Expert Recommendations
Our team will assess your needs and suggest the most suitable tank size, material, and features to meet local regulations and project demands.
✔ Time Savings
Instead of searching through multiple options, our form helps streamline the process, delivering a quick and accurate estimate based on your project details.
✔ Compliance & Customization
Ensure your septic system meets state and local codes while also receiving options for custom modifications to fit your site-specific requirements.
✔ Expert Support
Filling out the form connects you directly with our septic specialists, ensuring faster responses and dedicated assistance throughout your project.
Featured Articles Read More Articles
As a homeowner, it’s important to know the different septic tank sizes and what each one is capable of. Choosing the wrong septic tank size can lead to overflowing toilets...
A septic system is a reliable solution for wastewater management in homes without access to municipal sewer systems. But how exactly does it work...
As cities become more densely populated and the desire for self-sufficient living increases, many homeowners are seeking properties outside urban areas that provide a sense of independence.
When it comes time to choose a septic tank for your home, there are many factors you should take into consideration. What size do you need?
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Featured Manufacturers View All
Tank Depot is proud to offer Ace, Norwesco, Snyder Industries brand Septic Tanks. The world’s leading manufacturer of polyethylene tanks, Norwesco has been producing polyethylene septic tanks since 1980. With that kind of experience, Norwesco offers you proven products that you can count on for years of dependable, trouble-free service. Norwesco septic tanks are backed by a full three-year warranty and have been approved by state and local health departments from coast to coast. Where applicable, Norweco septic tanks have been approved by both IAPMO and CSA.
NORWESCO BELOW GROUND TANKS - Conversion Option & Information
Selecting an installation Site For Your Plastic Septic Tank
Ease of Installation
For septic system replacement and new home construction, Norwesco’s polyethylene septic tanks are designed for durability and quick, easy installation. Any Norwesco septic tank can be transported to the job site in a pickup truck and carried by just two people. This enables you to install the tank on your schedule.
NORWESCO Installation Instructions
NORWESCO Underground Tank Installation Instructions
NOREWESCO 2500 Gallon Horizontal Box Tank Installation Instructions
Please consider the following features when you are looking to purchase a septic tank and you’ll find that Norwesco tanks will exceed your expectations when it comes to performance and longevity.
Rotationally Molded, One-Piece Construction
Norwesco septic tanks are manufactured by means of the rotational molding process which produces a one-piece, seamless, watertight tank.
Superior Strength Design
The rib design and rib placement provide superior structural integrity to the tank.
Excellent Chemical Resistance
Polyethylene is unaffected by soil chemicals and by the chemicals and gases present in sewage, so Norwesco septic tanks will not rust or corrode and require no additional coatings as other tanks do. Norwesco’s strict quality guidelines ensure an environmentally safe septic tank.
Single or Double Compartment
Our 750, 1000, 1250 and 1500 gallon tanks are available as single compartment or double compartment tanks (2/3 - 1/3). Prior to installing any septic tank, you should check with your local health department for specific requirements that your county or state may enforce.
Pre-Plumbed / Ready for Installation
Norwesco septic tanks (750 gallons and larger) are shipped to you ready for installation. Our pre-plumbed tanks include tee assemblies installed at the inlet and outlet. Tees are sized/cut according to each state code so the tank that you receive will be ready for installation.
Watertight Lid
Norwesco septic tanks come outfitted with a domed lid. This improved design is significantly stronger than other lid designs. When leaving our factory the lid is attached to the tank with four stainless steel screws and comes standard with a foamed, polyethylene gasket between the lid and the tank. The gasket provides a watertight seal at the lid area.
Accessories Available
Manhole extensions and lid-riser combinations are available to bring tank access to grade and to meet code specifications.
