CHAPTER XX. PRESSURE TANKS; PLUMBING FIXTURES 117

141. Pressure tanks. 142. Construction of the pressure tank. 143. Care of pressure tanks. 144. Hot-water kitchen tank. 145. Instantaneous water heaters. 146. Heaters for tanks. 147. The elevated water tank. 148. Faucets. 149. Valves. 150. Overflows. 151. Traps for bath tubs and basins.