moose579

just brought a second hand hot tub from a good friend of mine as he is moving house hes emptied the tub now and there is a white mark around the top of it (about 3inchs ) where the top of the water was sitting how can i clean this off when the lorry deliverers it to my house dont want to fill and start using it until it all looks clean and the seating areas look dull to me the spa is about 5 years old .and allways been inside a summer house hope some one can help me