Review on 🔋 TERAPUMP TRHD03 2D Battery Operated Transfer Pump with Auto-Stop System and Leak Protection - Efficient Liquid, Gas, and Water Transfer by Chad Carter

This pump has a hole in the clear tube for a pin that will allow gas to escape. The pump has only been used about 4 times since delivery on 04/28/20. I've had several of these pumps and all of them would, from time to time, usually when they were brand new, blow gas out of the pump housing, destroying the audio signal and drowning out the sound to the point that it is barely audible when it reaches full level. Sometimes they get to the point where every time they throw the body away, it's time for the trash can. One failed due to a full sensor failure and appears to be working on a fix for the issue. I keep buying this junk because I need a tool like this and judging by the reviews other brands are just as bad. Overall, don't expect this item to last very long. It's still $30+ going.