Our collection of 20,000 to 49,999 litre water tanks offers professional-grade storage for the most demanding water management projects. These tanks are the standard choice for UK industrial sites, large agricultural estates, and commercial facilities that require a reliable, high-capacity water reserve. From rainwater harvesting at a massive scale to providing mission-critical fire protection, these tanks are built to perform for decades.
Storing tens of thousands of litres requires more than just a large container; it requires compliance with safety and environmental regulations. Our range includes:
CAT 5 AB Air Gap Tanks: Essential for meeting Fluid Category 5 regulations in commercial settings to prevent mains water contamination.
WRAS Approved Potable Tanks: Certified for drinking water storage, ensuring the highest hygiene standards for food processing or domestic backup.
Fire-Fighting Systems: Outfitted with specialized couplings and outlets to ensure immediate accessibility for emergency services.
SG Rated Tanks: Reinforced models designed specifically for heavy liquids like liquid fertiliser and molasses.
At The Tank Shop, we partner with the UK's most trusted manufacturers, such as Enduramaxx, UKPLAS, and Tuffa. These tanks are rotationally moulded in one piece, meaning there are no seams or welds that could act as failure points. The use of UV-stabilised, high-density polyethylene ensures the tanks remain impact-resistant and structurally sound despite long-term exposure to the elements.
A 20,000L tank presents a 20-tonne static load, and larger models in this collection can reach nearly 50 tonnes when full. Site preparation is paramount. These tanks must be installed on a level, smooth, and professionally engineered reinforced concrete base that exceeds the footprint of the tank. We provide technical support and data sheets to ensure your installation is safe, compliant, and correctly supported for its entire lifespan.