How It's Made S21E12 · Barber Chairs, Sewage Pumps, Bimini Boat Tops, Diesel FiltersBarber Chairs, Sewage Pumps, Bimini Boat Tops, Diesel Filters

Steel frames, hydraulic lifting mechanisms, padding and upholstery are assembled into adjustable barber chairs. Motors and impellers are enclosed in corrosion-resistant housings to create sewage pumps; marine fabric is measured and sewn to fit folding frames for Bimini boat tops; and porous filter elements are enclosed in steel housings to remove soot from diesel exhaust.