Review on GasTapper Siphon Pump - Pro XL Fuel Hand Pumps: Efficient Gas, Diesel, and Water Transfer with 8 Ft Hose, Anti-Kink Spring, Shut off Clip, Jiggler, & Hose Retainer Clip by Chad Boho

I see mostly high ratings but some 1 star ratings. Structure as in the video. Daylight squeezed out of a lightbulb with an arrow pointing in the right direction. The tube fills up and flow stops when compression stops. Why? No creases I have contacted the manufacturer. and look forward to satisfaction or replacement of the disposable bulb if I change my rating. Meanwhile - defective garbage goes in the garbage. Producer. called me and said the only way to use the black bulb was to 1) position the bulb at the end of the barrel, with the white plastic plug just in front of it 2) start the flow by squeezing the bulb 3) closed from the river 4) Remove the lightbulb. I'll try it when I'm in the mood to spill gas everywhere. No thank you