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My house in Canada is 14 years old . From original construction, rising up out of the concrete basement floor are 18" black tubes about 3/4 inch O.D. in three different locations . What are they for ? Can I cut them off at floor level and seal them off ? Any info is greatly appreciated . . enter image description here

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    Can you post pictures of the tubes? – manassehkatz-Reinstate Monica Apr 1 at 23:55
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    Concrete floor? I'd bet PEX for in-floor heating (cheap/easy to add when pouring in case you might want it later, hard to add later) so I would not rush to chop it off. Could also be conduit. – Ecnerwal Apr 2 at 0:10
  • Conduit would not be black. I'd say it is in floor hot water heating, either abandoned earlier or installed for future consideration. If originally installed and then it leaked, it's virtually impossible to fix so it may have been abandoned. – JRaef Apr 2 at 0:13
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    @Rob - You should put your picture directly into the question. While you are in the editing mode of your question there is an ICON that is a box with what looks like a picture of two mountain peaks and a sun in the corner. Click that and it will guide you through inserting a proper picture in your question. – Michael Karas Apr 2 at 0:47
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    My guess is that they are irrigation hose used as underground conduit for future network/coax cables. Two of those hoses are probably the two ends of the same pipe, and the 3rd one connects with a 4th one hidden in a wall or somewhere you can't see it. – Dotes Apr 2 at 2:36

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