Septic tanks are formed from a wide variety of materials, of which concrete and plastic are the most common, although steel is available as a much less popular option. Read More…
Leading Manufacturers
All Plastics and Fiberglass, Inc.
Mobile, AL | 800-226-1134With over 100 years combined experience, All Plastics and Fiberglass has the experience to handle all your plastic and fiberglass needs.
Park Plastic Products
Fort Wayne, IN | 800-228-7716Specializing in fabricated plastic tanks such as water tanks, polypropylene tanks, polyethylene tanks and storage tanks, Park Plastic Products is capable of making your plastic tank in any size or dimension.
Roto Dynamics Inc.
Orange, CA | 877-768-6585Roto Dynamics Inc., custom rotational molders serving rotomolding and plastic tank needs nationwide. We are dedicated to our customers manufacturing needs. Building customer relationships based on integrity and communication assists us in developing a competitive advantage within the industry.
Sterling Technologies, Inc.
Lake City, PA | 814-774-2500Sterling is a leader in the design and fabrication of plastic tanks. We set ourselves apart from the competition because of our ability to manufacture your product quickly and deliver it on time. With more than 30 molding arms constantly in use, we can manufacture your product quickly, and our products are nothing short of the best quality. Contact Sterling today!
GoTo Tanks
Edmonds, PA | 877-468-2657Go-To-Tanks is a full-line distributor of stock and custom-built plastic storage tanks and accessories, with locations all across the U.S. All of our tanks are made in the USA. We are able to offer direct-wholesale prices directly to our customers while never compromising the Quality of our products. Our manufacturing locations are strategically located to offer you the best shipping rate possible while allowing us to ship tanks to our customers within a matter of weeks not months
Sherman Roto Tank
Pearland, TX | 281-648-0909Sherman Roto Tank specializes in tanks that are manufactured to be suitable to store and process chemicals. Our tanks are a great choice for any industry. All our products go through extensive testing in order to surpass the industry standards.
Offering many advantages over both concrete and steel, plastic septic tanks feature high resistance to cracking, zero rust, light-weight, high corrosion resistance, water-tightness and low costs. Of the plastic materials, polyethylene (PE), a light, chemical-resistant thermoplastic, is the most commonly used plastic resin used for plastic septic tanks.
Polyethylene resins can be linear high-density (HDLPE), cross-linked high-density (XLPE), or linear low-density (LLDPE) resins. Following are polypropylene, polyvinyl chloride and polyvinylidene fluoride. In comparison to polyethylene, polypropylene (PP) is a light, durable thermoplastic that is denser, stiffer, and stronger than polyethylene and has a much higher melting point of 320ºF.
Septic Tanks - All Plastics and Fiberglass, Inc.Polyvinyl chloride (PVC) is a durable, transparent thermoplastic that is resistant to non-essential oils but cannot be exposed to some solvents. Polyvinylidene fluoride (PVDF) is another durable thermoplastic that has high resistance to chemicals and abrasion.
Septic systems consist of two major parts: a drainfield and a septic tank. The drainfield functions to remove contaminants and impurities from the liquid that emerges from the septic tank, and can also be referred to as either a leach field or a leach drain. The septic tank itself allows wastewater to enter in the first chamber of the tank.
After solids have settled and scum starts to float they are anaerobically digested, thus reducing the volume of solids within the septic tank. Next, the liquid component flows through the dividing wall into the tank's second chamber. In this chamber further settlement occurs, with the excess liquid then draining into the drain field. The majority of plastic septic tanks are formed using either a molding or welding process.
Plastic tank molding, including rotational, blow, and injection molding, involves using a model shape to form the tank. Plastic tank welding is a process in which two pieces of heat-softened plastic are joined through the application of pressure. Examples of this process are hot air and extrusion welding. Septic tanks differ in size and capacity, ranging from small tanks holding a few gallons to tanks exceeding 35 feet in length, with a storage capacity of 50,000 gallons or more.