The government is right to be focusing on improving water quality at Windermere, which is a stark example of waterways throughout the UK - much lauded but in desperate need of recovery. It is key that we look at all sources of pollution entering Windermere and that includes not only the effluent from private and public sewage treatment, but rainwater that collects and takes with it pollutants from the hillsides, livestock and road run-off. We urgently need a properly integrated management plan that looks at the catchment as a whole living system. We will not achieve a healthy well-functioning lake by just concentrating all our efforts and money on one source of the problem, important though that source is.