| 摘要 |
<p>During a rinsing stage a first quantity of water is accumulated in a buffer reservoir (17) and the tank is rinsed. During a washing stage a second quantity of water is accumulated and the milk tank (1) is washed. A first period of time used for accumulating the first quantity is measured. A second period of time is determined from the measured first period of time and either the first quantity and the second quantity or the ratio between the first quantity and the second quantity. During the washing stage water is supplied during the second period of time. A flexible and reliable method of dosing the second quantity of water essentially independently of the prevailing water pressure is obtained, which does not require a correspondingly large reservoir or any instruments specially provided for measuring the second quantity of water.</p> |
