House & Home Physics
Water Pressure vs Head Height
P = ρ g h

Every 10 m of height a water tower or upstairs tank sits above a tap adds ~1 atmosphere of static pressure — pure hydrostatics.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).