Most plastic storage tanks are round but we also produce rectangular tanks. Poly tanks are incredibly versatile—they can be used for rainwater storage, irrigation systems, septic tanks, and everything in between. Manufacturers, stock yards, brick & mortar stores, & fob points from and to the following locations: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Illinois, Idaho, Iowa, Indiana, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, Nevada, New Mexico, New York, North Carolina, North Dakota, New Jersey, Ohio, Oregon, Oklahoma, Pennsylvania, Utah, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Bahamas, Turks & Caicos, and Dominican Republic (Bahamas shipments are based out of Miami, Florida). As an example, a polyethylene tank designed with a specific gravity of 1.9 will be a stronger tank than a similar tank with a specific gravity of 1.5 or 1.2. There are many types of plastic that can be used to make storage tanks. Because more resin is required to produce tanks with a higher specific gravity rating, the cost usually rises along with the specific gravity rating of a tank. Plastic water tanks, poly tanks & liquid storage tanks discounted up to 60% off. These poly water tanks … Servicing all commercial, industrial, residential "farm / dairy / ranch", & custom jobs, from start to finish, allow our specialists to assist in helping you reach your goal. When considering which plastic tank to use, you should know that they are rated based on the 'specific gravity' of the substance they are designed to hold. With the use of modern plastics, the lifespan of a properly used plastic storage tank can rival or exceed the life of most other tanks. Add to Cart. We offer large and small tanks in a variety of materials including HDPE (High Density Polyethylene) tanks. Sievers Poly Tanks, LLC also specializes in Diesel … Buy the right tank for the job with more than 5,000 poly tanks in stock. 25 Gallon Plastic Vertical Storage Tank 41867. Our Premium Plastic Water Tanks are made from a food grade, UV stabilized polyethylene … The weight saving means lower costs and greater ease of transport, handling and positioning. Tanks made from plastic are usually less likely to react to the liquid which is stored in them. Big W carries a full range of polyethylene tanks including: Vertical flat bottom storage - 50 gallon through 11,000 gallon fertilizer tanks for storage of agricultural chemicals.