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U shaped copper configuration

1136 Views 2 Replies 3 Participants Last post by  plumber666
First time posting - Doing a toilet replacment and was considering replacing the old straight chrome water line that comes up through the floor that then connects with a flex line to the toilet. I traced back to the copper in the basement and saw the shut off valve, but also a U shaped copper configuration. Does this serve a purpose? I was considering re-piping that area but was just going to use a straight 90 from the line to head up through the floor to the bathroom. Picture attached if I did this right.


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