Pump side suction is good. The side suction type is better than the bottom suction type because the installation is more flexible. The side suction pump can be connected with liquid through pipes, and the installation position is flexible and can be adjusted as needed. The bottom suction pump needs to be installed at the bottom of the liquid, so the liquid level and installation position need to be considered when installing. The bottom suction pump is suitable for pumping shallow liquid with high water absorption efficiency; Side suction pump is suitable for absorbing deep liquid, and its installation is flexible.