UPDATE: My water flosser has arrived and I am very pleased with it so far - yes it took a couple of goes to avoid spraying the bathroom walls, however once I'd worked it out, it was easy to use and leaves my mouth feeling 'visit to the dentist' clean It's a little larger than I had anticipated, however not to the extent where it is a problem. A great buy, one which I shall use daily...thanks again to Grandmagrotbags for a specific recommendation which I thoroughly endorse, if anyone else is considering one.