Sensen According to official website information of Pacific computer network, Sensen water pump has excellent quality. At first glance, the shell mold is a big factory process, smooth and not rough, without burrs, and the combination is also very close. After installation, the water flow is sufficient. If the cylinder is small, it can only reduce the flow. This is also the characteristic of this pump, which can adjust the flow, so it is no problem to adapt to many small cylinders. As for the noise, the sound of the water pump is basically not heard two meters away in the middle of the night, and the manufacturer controls it very well.