{HEAD ~ A magnet} is therein mounted to a displaceable member and moved into and out of magnetic field coupling proximity to a timing reed switch in {TAIL ~ response} to the onset and termination of pressurized water flow through the water flow sensing unit 
{ HEAD ~ A magnet } is therein mounted to a displaceable member and moved into and out of magnetic field coupling proximity to a timing reed switch in { TAIL ~ response } to the onset and termination of pressurized water flow through the water flow sensing unit
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH