Edit 03/21/2015 .... the Sprüflasche loses already at 2. Use the cleaning liquid (leaking). The liquid flows through the hands and is spread over window frames, window sill and floor, which is not as desirable as I would have stayed at the same wiping bucket. Will write the seller and ask for replacement.
Edit 23/03/2015 .... hard to believe today was already a Ersatzsprühflasche Kärcher delivered for free !!