The present invention relates to water taps and relates more particularly to a water tape with single knob hot/cold water flow control and shower switching control, in which flow rate of hot and cold water is regulated by a common knob; a shower switching control unit is provided to let flow of water automatically discharge through a shower head for shower when the shower head is removed from a shower head holder.
Several hot/cold water flow rate controlling devices have been known. However, according to conventional method, hot flow of water and cold flow of water are separately controlled by two separate control valves which are controlled by two control knobs respectively. This hot/cold water flow rate control method is complicated to regulate water temperature. Because hot and cold flows of water are separately controlled by two control knobs, constant water temperature is difficult to obtain. Further, when a shower head is used it is generally directly attached to a branch outlet extending from the water outlet hole of a hot/cold water flow rate control device. While taking a shower bath, one may spend one hand to hold a shower head and spend the other to regulate the flow rate of hot and cold water.