Engineered Containment. Delivered Ready.Sachi Precast’s septic tanks and sumps are designed to offer quick, clean, and reliable solutions for underground liquid containment. Manufactured in controlled factory conditions, these structures ensure superior strength, water-tightness, and consistency compared to traditional in-situ construction. Each unit is built to specification and delivered ready for rapid installation.Available in customizable sizes, our precast sumps are ideal for domestic, agricultural, and industrial use — including water storage, greywater management, and waste disposal. With just one day required for installation, these tanks significantly reduce site work, labor needs, and environmental disruption.Built using high-grade reinforced concrete and sealed for long-term durability, Sachi’s tanks can also be adapted for special uses. From residential farms to industrial plants, our modular designs offer dependable performance and space-efficient installation for a wide range of containment needs.