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