Rainwater Tank Options | How To Choose the Right Rainwater Collection

Rainwater collection tanks (also called cisterns or vessels) allow rainwater storage for use at a later time. Rainwater Management Solutions works with leading rainwater tank providers across the country to provide customers with a variety of storage tank options (both above and below ground) to meet nearly any residential, business, or industrial need.

Metal

Things to Consider Before Selecting a Rainwater Tank

When choosing a rainwater collection tank, there are several factors that should be considered. Since every project has different needs, RMS offers nearly every type of rainwater tank on the market. A residential system won’t have the same capacity requirements as a large industrial manufacturer. An agribusiness may not need a potable-rated tank while a tiny home installation will require a storage solution that is safe for consumption. Here are just a few things to consider when selecting a rainwater collection tank:

Capacity
Filtration

Location
Application

Above-ground or in-ground?
Climate

RMS offers free tank sizing analysis to help determine the most efficient storage system based on factors like roof square footage, daily rainfall data and daily water demand from toilets, irrigation, laundry, and more.

What Types of Rainwater Collection Tanks Are There?

After determining the optimal size and location of the rainwater collection tank, the next step is to select a material type. There are several of choices, all of which come with their own unique properties.

Metal Storage Tanks

Made of corrugated galvanized metal, these storage tanks utilize a PVC liner and can be used for potable (drinking water) and non-potable (non-drinking water) purposes. They are typically assembled on-site and above-ground. Metal storage tanks come in a variety of sizes, making them a great option for residential or business use. Extremely durable and ideal for all-weather use, these tanks are completely protected from UV degradation, preventing problems with bacterial growth.

Fiberglass Storage Tanks

Ranging from 300 to 50,000 gallons for below-ground installations and up to 20,000 gallons for above-ground installations, fiberglass storage tanks are non-corrosive and long-lasting. When large amounts of water are needed to reuse for commercial irrigation or agriculture, fiberglass storage tanks are a reliable solution. They are available in a variety of configurations and can be used for potable and non-potable applications.

Modular Rainwater Tanks

Available in many different configurations, modular rainwater tanks can be adjusted to ensure they meet the necessary size, depth and load ratings for any project. Providing low-impact development for capture and reuse, modular rainwater tanks are assembled on-site and installed below-ground. Modular storage is a great solution for projects where shallow excavation is necessary, such as in regions with a high water table. Certain modular systems are made of recycled plastics, which can help to achieve LEED points for Materials and Resources. Since they are relatively light and assembled on-site, modular storage systems often have low shipping costs.

Polyethylene Storage Tanks

One of the most versatile and economical choices for rainwater storage, polyethylene storage tanks can be installed above or below-ground. Polyethylene storage tanks are available for potable and non-potable applications and come in a wide range of capacities, shapes, and dimensions. Multiple tanks can be easily connected with equalization lines for larger storage solutions.

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High Density Polyethylene Pipe Cisterns (HDPE) Storage

Corrosion-resistant and available in 36”-60” diameters and lengths from 10’ to 20’, HDPE storage can be configured to hold large amounts of water and are assured of a long service life. These cisterns are customizable, with a variety of fitting options for site-specific design and application.

Concrete Storage Tanks

Concrete storage solutions are versatile and customizable options for below-ground and above-ground storage. They can be precast or poured on-site for nearly any necessary configuration. Their weight can make precast transport a challenge, making on-site pouring a helpful alternative. In some instances, the concrete can help to stabilize water pH. Concrete storage tanks are well-insulated and long-lasting, and cistern liners can be used to optimize water quality and help prevent leaks.

Get Fitted for Your Rainwater Harvesting Tank Today

It can be challenging to determine which size of rainwater collection tank is right for the job. Whether for a residence, commercial building, or industrial facility, there are many rainwater storage applications from which to choose. Rainwater Management Solutions uses tank sizing software to determine which size rainwater tank is right for a project. For free rainwater tank size analysis, contact us today.