Tempered water is distributed continuously from the circulation system when the water is drunk by cattle. The cable system of warmed water is situated in the bottom of the trough. This system is able to keep stable temperature of water in trough (especially during winter months). This system should prevent heat loses. One part of trough space is a float chamber where the float valve with a high flow rate is situated. The trough is connected with an elctro-boiler. It is possible to change the water temperature flexibly according to the breeder`s needs, or the system can be connected to sensors which detect the temperature in the barn.