I have a plumber friend that actually has 16 shower heads in his. Why? I don't know but that's his business, not mine. They are all not like you would imagine a normal shower head to be, just to clarify. They are basically glorified water valves that shoot from the sides and the top kind of like pool filter valves.
That sounds cool, really. And as a concept, it goes back farther than you may think:
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