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 response to the onset and {HEAD ~ termination} of {TAIL ~ pressurized water flow} through the water flow sensing unit 
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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 response to the onset and { HEAD ~ termination } of { TAIL ~ pressurized water flow } through the water flow sensing unit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH