the use of customer-central water usage data piques my interest. there's a huge market for selling water and waste data to advertisers and other companies interested in consumer data. This is one of my friend's startups, smartpipes, which is a type of smart sewage pipe - these smart washers remind me of smartpipe (which supports dishwasher waste!): https://www.youtube.com/watch?v=DJklHwoYgBQ