Our low profile water tank systems are engineered specifically for reliable underground water storage in demanding environments. Designed as a shallow-bury (4-foot) solution, these polyethylene tanks provide a practical option for projects where installation depth, site conditions, or seasonal weather constraints must be carefully managed.
Manufactured for safe potable applications, each potable water underground tank is built from high-quality polyethylene that resists corrosion, rust, and structural degradation over time. The material’s inherent flexibility and impact resistance help protect the tank during installation and throughout long-term use in harsh climates.
At Greer, extensive design refinement and real-world testing have shaped a product line that performs consistently under extreme conditions. These in ground water tank systems are certified for potable use, offering dependable storage for drinking water, rainwater harvesting, and well water supply. Their lightweight construction simplifies handling and placement, while robust wall strength supports long service life below grade.
All tanks are NSF-approved and manufactured using BPA-free materials, including fittings and attachments, to help maintain water quality and regulatory compliance.
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Low Profile Underground Plastic Water Tanks Product Details
Standard Features:
- Low profile water tank design with a maximum height of 51″, supporting shallow burial requirements
- NSF-approved for potable drinking water storage
- BPA-free tank construction and BPA-free attachments
- Suitable for rainwater collection, well water systems, and general underground water storage
- Engineered for burial depths of up to 48″
- Corrosion-resistant polyethylene construction for long-term durability
- Lightweight structure for easier transport and installation
- Designed to withstand harsh environmental conditions, including freeze-thaw cycles
Low Profile Polyethylene Plastic Underground Water Tanks:
| Gallons | Length | Width | Height | Weight |
|---|---|---|---|---|
| 750 | 84" | 69" | 51" | 235 lbs |
| 1000 | 108" | 69" | 51" | 302 lbs |
| 1250 | 134" | 69" | 51" | 387 lbs |
*48” maximum burial depth
FAQs
A low profile underground plastic water tank is a shallow-depth water storage tank designed to be buried closer to the surface than traditional underground tanks. These polyethylene tanks are ideal for locations where excavation depth is limited while still providing reliable potable water storage.
Low profile water tanks are designed for shallow installation and can typically be buried up to 48 inches deep depending on soil conditions and installation guidelines. Their low-profile design makes them ideal for areas where deeper excavation is not practical.
Yes. Many polyethylene underground water tanks are NSF approved for potable water storage, meaning they meet strict safety standards for storing drinking water. These tanks are also BPA free and resistant to corrosion, making them a reliable solution for potable water systems.
Low profile water tanks are commonly used for residential water storage, rainwater harvesting, agricultural irrigation, construction sites, and remote cabins where space or burial depth is limited.





