1. If the water of solar water heater has run out in the bath, but people still do not rinse, then input cold water for several minutes, use the principle of cold water sink, hot water floating, press the water the top of the vacuum tube inside, then we can take a bath.
2. Using the NO.1 principle, after the bath, there are still a little maintenance of hot water in solar water heaters, then input a few minutes of cold water, the obtained hot water can be wash for more than one.
3. Deside the amount of water according to weather forecast, you can obtain satisfactory water temperature. If tomorrow is a sunny day, you can be full of the solar water heater water; if it is cloudy or cloudy, store half tank of solar water heater; if it is rain, the preservation of the water is not cold water.
4. After the bath, if the water heater tank maintenance half for nearly 70 degree water, in order to prevent excessive heat loss of solar water heater (less water, the faster the heat loss), also decided on the amount of water under the temperature forecast. Tomorrow is sunny store with full water to solar water heater; if the rainy days, store the 2 / 3 of water.