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1·When installing the automatic waterer, make sure that the water pipes to the unit are below the frost line.

当安装饮水器时，务必确保水管到装置低于冻结线。

2·Making sure that the waterer is correctly installed is the most important key in preventing problems later on.

确保饮水器正确安装是预防之后可能出现的问题的最关键的一点。