Looking for a low-cost solution for rainwater collection, drainage, or greywater handling? DrainInner Insert is your no-frills, last-stop tank for non-critical liquid storage. This is a used inner tank from 1000L IBCs, retired from chemical use. The original valve is no longer functional — sealed off for safety. No frame, no certifications — just a plastic shell ready to serve its final purpose.
This is just the inner tank (insert) — no frame, no base.
It cannot be used as-is on open ground for liquid — it is not self-supporting.
Must be installed inside a steel cage, wooden box, or dug partially into the ground to hold its shape and prevent tipping.
Not suitable for drinking water, food products, or pressurized systems. Bottom valve is sealed — filling and emptying must be done through the top lid only (using pump).