Review on TERA PUMP: Efficient Battery Operated Liquid Transfer 💧 Siphon Pump for Up to 7 Liters Per Minute by James Chandran

I bought these to irrigate my indoor grow space. It's easy to use. Place the wand in the water source, place the test tube where you want the water to flow and press the button. The problem is that 50% of the time it doesn't work. It just makes a loud howl/crunch. If you turn it off and on again, it might work a second time. That issue aside, however, the button goes down about 1/4th of the time and doesn't come back, meaning it just keeps pouring water when you don't want it to, and you have to keep pressing the button for it to pop off and off turn the thing off. I would say 1/3 button press works as expected. This thing would be great if I used it for a winter lawn mower or van gear. It will be amazing for my use case if it works 100% of the time.