This rubber sits on the basement floor and it does NOT lead to the exterior
Someone said - it is used to discharge the pressure from the water line.
What is the purpose of this tube and if I could remove it?
Sounds like its more than likely a condensate drain line, but without a picture or much better description its impossible to say. Where does the line originate from? Where does it terminate? Does it terminate at a floor drain or plumbing stack? What is the approximate diameter of the pipe? Is it flexible?
I would highly advise against removing it until you can determine its purpose as its unlikely to have been placed there for absolutely no reason.
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