In the absence of pressurized water flow, the bar magnet drops into magnetic field coupling {HEAD ~ proximity} with {TAIL ~ the reversing reed switch SW2} 
with
In the absence of pressurized water flow , the bar magnet drops into magnetic field coupling { HEAD ~ proximity } with { TAIL ~ the reversing reed switch SW2 }
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 TAIL TAIL