Underground Modular Tanks
Need scalable water or wastewater storage? Calcamite’s modular tanks are flexible, durable, and built to grow with your project — from water storage to septic and conservancy systems.
Underground Modular Tank Range
Each Calcamite underground modular tank is made with durable, high-quality materials and engineered for underground use, with a design that makes scaling, connecting, and commissioning simple.
Whether you choose from our standard sizes or need a customised system, you’ll get a future-proof solution that performs.
Applications
Water Storage Tanks
Our modular tanks are uniquely designed for easy installation, fast commissioning and flexible scalability. The standard range offers storage up to 9500 litres, with larger custom systems available on request.
Septic Tanks
Calcamite modular septic tanks are the perfect solution when you need extra capacity. Incorporating the same double chamber design as our standard septic range, they provide cleaner effluent discharge and help reduce soil and water contamination. Custom-built options are also available for larger installations.
Conservancy Tanks
Frequently used as conservancy tanks, our modular units safely store wastewater on site while protecting groundwater from contamination. Waste is periodically removed by a disposal service and taken to a treatment facility. These systems can also be customised for non-potable water reuse.
5500L Underground Modular Tank
R 22 994.00
9500L Underground Modular Tank
R 43 125.00
15 500L Underground Modular Tank
R 68 874.00
How does it work?
Underground Modular Tank Solutions
Our highly adaptable modular tanks can serve as water storage tanks, septic and conservancy tanks, or even as various reactors within a wastewater treatment plant. The modular flexibility of these underground tanks offers extensive opportunities to optimise water storage for applications where increased capacity and customisation are required.
