Kitchen Sink Plumbing Questions

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by ravens, Feb 7, 2021.

  1. ravens

    ravens New Member

    Joined:
    Feb 7, 2021
    Location:
    annapolis, md
    We have a contractor that bailed hallway through a project and I’m trying to figure out our plumbing situation under the kitchen sink. There are three lines that have been stubbed. I’m relatively clueless with plumbing but know that I need a hot and a cold but I’m not sure what the third line is for? How do I figure this out? I have attached two earlier pics- one after demo that shows the three lines before the lines on the right were cut below the valves. I think one of the lines feeds an outside hose bib? I also have a relatively dark pic of under the sink before the lines were cut. It looks like the line on the left comes up and then is tee’d to the left. It appears it has a blue shut off valve. How can I figure out where this line was heading?
     

    Attached Files:

  2. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Looks like it is the feed for the refrigerator. Open the valve at the refrigerator location if there is one, No water, then slightly open the valve at the sink.
     
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  4. ravens

    ravens New Member

    Joined:
    Feb 7, 2021
    Location:
    annapolis, md
    There was no waterline to the refrigerator. I think there was some sort of shutoff for the outside hose bib? Also, forgot to mention, all three lines have been cut down below the valves and capped with shark bites.
     
  5. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    [​IMG]

    I would think that the left side would be hot, with a branch for the dishwasher to the left.

    [​IMG]

    To the right I see something coming out of the slab. What is this?

    Does your hosebib work now? That line on the right at the kitchen could be going over for an ice maker or for a hosebib.

    How deep is the new sink?
    For a 10" deep sink I like the drain at the wall to be 16" or lower. I used to rough those at 19" when we were installing 7" deep sinks.

    [​IMG]
     
  6. ravens

    ravens New Member

    Joined:
    Feb 7, 2021
    Location:
    annapolis, md
    Thanks Terry Love. The thing on the right is the electrical hookup for the range. There was no ice maker so I think you are right that the line on the right is feeding the hose bib.

    The red valve handle threw me off as I would expect that to indicate hot? Also the line on the left appears to have a blue valve handle which I would expect to be cold. But your explanation would make the most sense: The left is hot feeding the dishwasher and up to the sink and the the other two are cold. The middle line would feed the sink and the one on the right goes down and out to the hose bib.
     
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