Drake toilet water plumbing connection

Discussion in 'Toilet Forum discussions' started by upstateNY222, Oct 22, 2009.

  1. upstateNY222

    upstateNY222 New Member

    Messages:
    3
    Location:
    Albany, NY
    My question is technical and is directed solely to the water connection at the toilet tank. I have always used bendable chrome copper tubing for connecting toilet tanks -- This Drake is my first connection to plastic, in the past all were solid Brass. Checking at my local DIY center I noticed (besides the fact that most are using flexible SS tubing) that bendable chrome tubing is available in 2 forms, a flat top version and a dome top version. I have always used the flat top version with solid Brass.

    What is the specific use for each type ?? see photo

    Attached Files:

    Last edited: Oct 23, 2009
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,416
    Location:
    Bothell, Washington
    The dome top is for lavs with a 1/2" nut
    The flat top is for toilets with a 7/8" nut
  3. upstateNY222

    upstateNY222 New Member

    Messages:
    3
    Location:
    Albany, NY
    thank you.

    Is there a preferred connection for the drake toilet - It's an ADA compliant replacement for a regular height 25 year old Kohler - the flat top chrome tubing length with bends is 9 3/4" - a 12" SS flexible is excessive and a 9" is too short?
  4. Terry

    Terry Administrator Staff Member

    Messages:
    15,416
    Location:
    Bothell, Washington
    You can get longer rigid copper supplies.

    Or just let the flex connector bend a bit.
  5. upstateNY222

    upstateNY222 New Member

    Messages:
    3
    Location:
    Albany, NY
    Thanks again - decided to use chrome bendable tubing now that I know which is the correct top. Since I have a tubing bender, inlet water supply was easily installed.
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