Continuing story about smelly windscreen washer bottle. I've tried the Milton disinfectant and it smells much better. However warning to anyone else trying this if you use the windscreen washer with the disinfectant still in it makes a total mess of the windscreen and bodywork. Comes off admfter a wash but it looks awful. So decided to stick hose in bottle and flush it for ages which seems to have done the job. So thanks for the tip on Milton disinfectant safrane