Liquid Storage Tanks: Understanding the Basics

Vertical Liquid Tank

Evaluate Your Needs

Whether you’re purchasing a liquid storage tank for your rural home or for business applications, it’s unlikely to be a frequent purchase. As a result, researching and purchasing the best tank for your needs is key. 

Since purchasing a liquid storage tank is a significant investment, we want to share some of the most critical questions we get asked to help you make an informed purchase decision. Additionally, what differences to expect when comparing a Den Hartog Ace Roto-Mold tank to options available through your local hardware store. 

What are the most common types of tanks and their function?

Dome top vertical tank
Vertical Tanks
Available in dome or flat top. Vertical Tanks are free-standing with a flat bottom for indoor or outdoor installations. Ace Roto-Mold Vertical Tanks conform to the requirements of NSF/ANSI Standard 61 for drinking water systems. Tanks are manufactured from medium or high-density polyethylene with U.V. inhibitors. Tank walls are translucent for level viewing and equipped with gallon indicators. Most frequently used for water or fertilizer storage.
free standing horiztonal
Horizontal Tanks
Horizontal Tanks are available as free-standing, round, and elliptical, and can be used for a variety of custom applications in both stationary and portable configurations. Manufactured from medium-density polyethylene with U.V. inhibitors and designed for containment of liquids of up to 1.7 specific gravity. Tank walls are translucent for level viewing and equipped with gallon indicators. Ideal for truck beds or where mobility is required.
cone bottom tank group
Cone Bottom Tanks
Cone Bottom Tanks are selected when a more complete drain out of stored chemicals is required in indoor or outdoor installations. Tanks require stands to support the conical bottoms. Tanks are manufactured from medium or high-density polyethylene with U.V. inhibitors. Tank walls are translucent for level viewing and equipped with gallon indicators.  Also available as Open Top Tanks, Inductor Tanks, and Batch Tanks.

What’s the difference between medium and high-density polyethylene?

Ace Roto-Mold tanks are offered in medium and high-density polyethylene. The polyethylene utilized in the manufacturing of Ace Roto-Mold tanks depends upon the size of the tank. There are minimal differences in the characteristics between medium and high-density polyethylene. High-density polyethylene offers a slightly higher density, chemical resistance and impact resistance than medium density polyethylene. Your planned application of the tank would help to determine if high-density polyethylene is necessary.

What is specific gravity and how do I calculate it?

Specific gravity is the ratio of the chemical weight per gallon divided by the weight of water per gallon (8.33 lb per gallon). As an example, if a chemical weighs 10 lb per gallon, the specific gravity of the chemical is 10.0/8.33 = 1.2 SG. (Metric: kilogram/cubic meter or gram/liter) Substances with a specific gravity greater than 1.0 are heavier than water, those with a specific gravity of less than 1.0 are lighter than water. Ace Roto-Mold standard tanks have a specific gravity of 1.7. Our vertical tanks ranging from 20-625 gallons are standard with a specific gravity of 2.0. 

What chemicals can I store in Ace Roto-Mold liquid storage tanks?

Review the Chemical Resistance Data Chart on pages 21-23 of this pdf. This will determine if the chemical to be stored is compatible with polyethylene. If this resistance data does not list the chemical you intend to store in the tank, contact the chemical manufacturer for recommendations regarding storage in polyethylene tanks. The most common uses of these tanks include fertilizer for farms, oils or petroleum, and water. 

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What are the benefits of a higher-quality liquid storage tank?

Investing in a high-quality liquid storage tank has many benefits that can’t be ignored. Increased longevity and durability of your tank will reduce long-term labour costs on maintenance and replacement. Having access to the range of tanks available through Ontario Agra and Ace Roto-Mold will ensure that you’re using the perfect tank for your job. The versatility of liquid that can be safely stored positions Ace Roto-Mold tanks as a leader in the industry, making them an ideal choice for nearly all practical applications on the home, farm, or factory. Understanding the significance of specific gravity, and purchasing a tank built to withstand the liquid you’re going to be storing will help to avoid critical failures and malfunctions. These high value specific gravity ratings of 1.7 and 2.0 are one of the major differences you’ll find when comparing Den Hartog Ace Roto-Mold tanks to inexpensive alternatives. 

We hope that you’re feeling better prepared to make a well-educated decision for your next liquid storage tank purchase. If you have any questions that weren’t addressed in this article, please reach out to our sales team for assistance. With years of knowledge and experience across the province, we’ve got the answers you’re looking for.

(905) 386-1744 sales@ontarioagra.ca | 5377 Elcho Road, Wellandport, ON

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