Single battery – Various types are used more and more; single-lever water mixers. Considerably reduce both cold consumption, and hot water, because they enable quick and precise setting of the amount of flowing water, as well as its temperature. In such a battery, the outflow of water occurs when the handle is pivoted upwards. Mixing cold and warm water in certain proportions takes place after angular rotation of the handle. The angle of rotation of the handle can be set permanently, and this will guarantee the flow of water at the desired temperature.