GewitzterThanas732 months ago000Can you also clean with clear water? Or must the cleaning agent always be used? If so, does it always have to be the original?Show in original language (German)Fabio_P2 months ago • purchased this product000purchased this productOnly with clean water I think it works but not well. The liquid helps to remove dirt and avoid halos.A compatible liquid also works. Show in original language (Italian)CommentSeestärnli2 months ago • purchased this product000purchased this productI don't know. I always use the original because I'm so happy with the result...Show in original language (German)Comment