According to another aspect of the present invention, {HEAD ~ an adjustable wedge block} is provided to limit {TAIL ~ the tilting angle} of the control lever so as to confine the maximum output volume of water 
is provided to limit
According to another aspect of the present invention , { HEAD ~ an adjustable wedge block } is provided to limit { TAIL ~ the tilting angle } of the control lever so as to confine the maximum output volume of water
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH