Large sheet canvas in polyester coated with PVC to cover the circular tanks for treated effluent to resist contact with ammoniac alkali and acids. Ideal for porcine and bovine tanks on farms
It limits the dispersion of unpleasant odours and protects the effluent from the rain, since fertiliser that has not been diluted by the rain is of a better quality. Maximum diameter of the sheet 30 meters, while the sheet and its tension cables are guaranteed for 10 years.