Patent ID: 7481377

Claim:
A method for ejecting streams of water from a swimming pool cleaning nozzle assembly within a defined fan angle and at different angular elevations relative to the adjacent surface to be scrubbed by the streams of water, said method comprising the steps of: a) erecting a stem and attached nozzle housing supporting a plurality of nozzles in response to the presence of water under pressure introduced to the nozzle assembly; b) incrementally rotating the stem and the nozzle housing during exercise of said step of erecting; c) discharging a stream of water through an opening in a cover and through a nozzle of the nozzle housing at a first angle relative to the adjacent surface; d) covering the remaining nozzles of the nozzle housing with the cover on exercise of said step of discharging; e) retracting the stem and attached nozzle housing in response to an absence of water under pressure at the nozzle assembly; f) further incrementally rotating the stem and the nozzle housing and positionally stepping the nozzle housing relative to the opening in the cover during exercise of said step of retracting, wherein the cover does not rotate; and g) repeating said steps of erecting and retracting to serially position the nozzles in the nozzle housing in fluid communication with the opening in the cover.