By Ian Walmsley
Pan Up
Train toilets are never pleasant places – this innovation might just make them better. Don’t read this over your breakfast, or if you think the innovation process works

As any railway-person who has worked in a depot will know, train toilets are not somewhere you linger longer than necessary. The list of things not to flush down them is often ignored and even their expected consumption can lead to problems you wouldn’t want to see on your job sheet.