gully emptiers - purchase of sludge vacuum cleaner including service agreement./ tårnby forsyning spildevand a/s wants to purchase a complete factory-new recycled sludge vacuum cleaner. the tendered contract thus includes the purchase, construction and delivery of a complete factory-new left-hand drive mud cleaner of the recycling type. in addition, the contract includes servicing of the recycling sludge suction plant for a period of 5 years, so that the warranty (2 years from delivery) is maintained. the contract also contains an option for 5 years of service for the truck with driveline.