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They are using 2 pairs of wires (blue/blue white, orange, orange/white) to run two different sets of phone lines. All of the same color are grouped so that you can install a phone in any of the jacks --in a standard installation in an RJ-45 jack, these are the center wires: https://incentre.net/ethernet-cable-color-coding-diagram/ I'd guess that the two ...


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That is interesting. Your plumber got creative. That is schedule 40 PVC and it was not meant to have a nut on it. Yet, there it is. One nut evidently firmly attached. If I am wrong, which I highly doubt, and that nut is supposed to be there, then it will unscrew with a big pair of channel locks. I assume you already tried that. Why was a nut used? What is ...


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