draining liquid

Vasilisa

New member
Jan 18, 2025
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Hello! I bought a dispenser and I have a problem: the liquid drains back from the tube into the bottle. How can I fix the problem?
 
I don't understand what kind of video you want me to make for you. After pumping the liquid through all the hoses, almost immediately at the point where the hose that comes from the bottle is attached, air appears, after a while all the liquid from this hose flows back into the bottle. I changed the hoses, reconnected them, but this does not help
 
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