This is a five compartment advanced septic tank system with poly-grass lining and bio-media to increase the surface area for attached growth of the anaerobic bacteria digesting human waste. The bacteria is added to the system as inoculums and this vastly reduces the sludge formation and frequent cleaning of the septic tank.

The composite underground and above ground storage tank is a state-of-the- art product, developed to replace R.C.C. sump and overhead tanks. Homogeneously moulded and factory tested – it ensures water tightness and total corrosion resistance. Being light weight res guarantees easy and quick installation making it builders’ choice even in water logged locations. Tank sizes are available from 1,200 liters to 60,000 liters.

The Composite tanks up to 2.6 m (8.5 ft) diameter are factory manufactured with internal partitions of various configurations for STP applications. They are used in both underground and above ground STP plants and can be operated in all pH range due to the corrosion resistant properties. Provision for fixing air-ducts and diffusers can be custom built on request.