Maintenance free Light and easy to transport No rust Will not taint contents Resists ultra-violet damage Prevents algae growth Environmentally friendly material Non-toxic food grade polyethylene No leaching	We use world-class technology in Rotational Moulding process to manufacture Rota Tanks. This leading technology uses Polyethylene, which is an extremely tough, durable, lightweight, thermoplastic material. The colour and ultra-violet stabilizers are compounded to give long-term resistance and stability in harsh sun. No chemical reaction takes place during the manufacturing process of our tanks so there are no chemical residues or by-products in Rota Tanks to taint your water.