National Hug A Plumber Day is April 25th. Whether a minor leak to a major clog, a plumber will have the right tool for the job & have been keeping the water flowing since ancient Rome. Consider how plumbers improve our lives & health in the modern world. Their contributions could be inventions the human race would have a difficult time living without. Given a choice between using only a flush toilet or a smartphone for the rest of your life, which would you choose? A plumber replaces the water heater.