New hot water faucet rusting out

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by greg_xyz_nj, Sep 24, 2020.

  1. greg_xyz_nj

    greg_xyz_nj New Member

    Joined:
    Mar 3, 2018
    Location:
    Morris County, NJ
    Hello,
    I replaced the powder room sink faucets a few weeks ago and noticed some discoloration.
    It appears that the hot water faucet is rusting away.
    I have a water softener system installed and the cold water faucet seems ok.
    The only thing i did was connect the water supply lines to the new faucets.
    any ideas what is causing this?
    thanks for any insight/advice
     

    Attached Files:

  2. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Is it a steel washer? Are the water supply lines copper, plastic or a metal flex lines? The way the rust stains spread out, it just could be water getting under the escutcheons. Clean the sink top and put a bead of caulking on the edge of the escutcheons, press it down on the sink top and wipe away excess caulk. Why just the hot side?

    I searched on "brass washers" and there are a lot of brass washers listed. You might want to replace these with brass.
     
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  4. greg_xyz_nj

    greg_xyz_nj New Member

    Joined:
    Mar 3, 2018
    Location:
    Morris County, NJ
    Thanks for getting back to me.
    Water lines are copper. There is a shut off valve, from the valve i used new metal flex lines to the faucet. I took the escutcheon off of the cold side and the cold side has a little rust as well.
     

    Attached Files:

  5. breplum

    breplum Member

    Joined:
    Oct 2, 2004
    Occupation:
    Plumbing and heating contractor
    Location:
    San Francisco Bay Area
    Faucets should never have steel washers in water contact areas.
     
  6. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    The brass nut should not be tarnished that fast if it was a few weeks ago. The rusting washer seem to have an anodized coating that has deteriorated. It maybe an electrolysis going on, it way I asked what the water lines were made of. The top knurls for the handle also shows electrolysis (green). Its hard to believe it is all this in just a few weeks. This was a brand new faucet? What brand may I ask?
     
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