Review on 💪 Powerful Electric Transfer Universal Pressure - 2.5-4 PSI by Zach Clements

I've used this to continuously pump evaporating liquid through some hoses without pressure. I noticed that the sound of the pump changed after the first day. A few days later the pumping stopped. I took it apart and found a spring broken into three pieces on the input side of the inflation mechanism. The rest of the design looks solid, but apparently this spring has a weak point.