The earliest showers were rather like having a pail of water tipped over you from a height. By the 1880s there were some more sophisticated contraptions available. They could be fully integrated with indoor plumbing, and came complete with an array of taps and valves to adjust temperature, water flow, and more. Patent mixers were invented to make sure the water could never be scalding hot. One manufacturer promised their needle shower would not let water go over 98 degrees F (body temperature). Showers were supposed to be invigorating and health-giving, so cool or lukewarm water was considered beneficial.

interesting