According to another aspect, there is provided a method includes {HEAD ~ steps} of sensing water, firing an actuator, rotating a cam member and linearly moving {TAIL ~ a releasing slide} 
According to another aspect , there is provided a method includes { HEAD ~ steps } of sensing water , firing an actuator , rotating a cam member and linearly moving { TAIL ~ a releasing slide }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL