Potable Underground Tanks

GRAF potable water storage tanks are only made from food-safe plastic. Special requirements have to be met when storing potable water. GRAF potable water tanks are made from robust, durable polyethylene. They are easy to clean thanks to their smooth inner surfaces, allowing potable water to be stored in a perfectly hygienic manner. All of our potable water tanks come with WRAS (water regulations advisory scheme) approval.