The eight-setting hose nozzle

A thumb finds the trigger before the eyes find the dial, and the dial itself turns through eight settings by feel: mist, shower, jet, flat, cone, angle, full, off, printed in a ring so small and so worn on display models that most customers stop reading after jet. Water leaves the nozzle at pressures that vary by more than triple depending on which municipal line feeds the spigot, so the same dial setting produces a fine cone at one house and something closer to a firehose at another, a variance the manufacturer accounts for with a pressure-regulating gasket that fails quietly, over years, without announcing itself. The trigger mechanism is the part worth watching: a spring-loaded lever under the palm, rated by most manufacturers for roughly ten thousand cycles, though the one on the display model in the garden center sees closer to ten thousand cycles a season, tested by children who find the trigger before they find anything else in the aisle worth touching. Display units are swapped out twice a year, not because the mechanism fails but because the O-ring seizes from disuse between waterings, a fault no customer would notice in a nozzle they actually bought and used weekly. The ones sold and taken home rarely fail this way. Use, in this one case, is what keeps a thing working.

R. Quist