Those blue and red fresh water couplings

Discussion in 'General Maintenance/Repair Questions' started by brewster16, Oct 12, 2017.

  1. brewster16

    brewster16 Member

    Aug 9, 2009
    Long Beach Island, N.J.
    '07 44 Sundancer
    Twin Cummins QSC 8.3
    So, during winterizing of my fresh water plumbing system it seems that the coupling (white plastic spin knob) from the blue tube to hot water heater is stripped. Anyone know how to replace it so I can make a tight connection? Those tubes are stiff and that plastic knurled piece's threads are NOT catching no matter how much I try. Thanks IMG_4352.JPG
  2. JimG

    JimG Well-Known Member SILVER Sponsor

    Nov 4, 2008
    Southern WV
    2007 310 DA
    Kohler 5ECD
    Twin 350 Mags
    Raw Water Cooled
  3. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor

    Apr 21, 2009
    Just to double check, before you buy and replace anything, take that short nipple right next door (in the pic) and see if it will screw in. Other than that, good find by Jim!

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