Discharge sensor

Discussion in 'General Maintenance/Repair Questions' started by Irie308, Jun 5, 2022.

  1. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    8E72D1FE-4255-4DEB-8009-76AF3B26D525.jpeg So my overboard discharge has never worked since owning the boat. Frankly not sure how it should work but I know this sensor connected to the through hull has something to do with detecting if the thru hull is open or close. Does anyone have any idea how it works to sense if open or closed? Was down cleaning the bilge today and it more or less came lose with little effort.
     
  2. Phil S

    Phil S Well-Known Member

    Oct 16, 2020
    Taxachusetts
    2004 300DA
    5.0 Merc MPI
    Bravo III

    2022 KL Tender
    6hp Mercury OB
    On mine this is the closed position. Turn the handle 90 degrees CCW from this angle and end of the handle goes from 9:00 to 6:00 making contact with that button, and then the macerator works. Looks like I have the same switch as you -- just not sure how yours came loose like that :eek: Maybe you can put it back in place with the 2 screws.

    upload_2022-6-6_7-51-57.png
     
    Bill Curtis likes this.
  3. Phil S

    Phil S Well-Known Member

    Oct 16, 2020
    Taxachusetts
    2004 300DA
    5.0 Merc MPI
    Bravo III

    2022 KL Tender
    6hp Mercury OB
    I didn't mean to imply that the macerator starts working when you open the valve -- just that it completes the circuit and allows it to work if I go down it the cabin and press the discharge switch.
     
  4. b_arrington

    b_arrington Well-Known Member GOLD Sponsor

    Feb 21, 2007
    Setauket, NY
    Back Cove 37
    AB Ventus 9VL
    Cummins QSC 8.3 600
    That looks like a waterproof momentary contact switch made by Control Products, Inc (CPI), in a custom-made housing. It's probably a normally open switch. When the handle is moved to the open position it closes the contacts to energize a circuit or turn on an indicator light.
     
  5. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Thank
    Thanks, I've an idea of how it works now based on your pic. Looks like I'm missing a piece that goes over the black button.
     
  6. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Thanks, now to see if i can find a replacement if not parts on line.
     
  7. b_arrington

    b_arrington Well-Known Member GOLD Sponsor

    Feb 21, 2007
    Setauket, NY
    Back Cove 37
    AB Ventus 9VL
    Cummins QSC 8.3 600
    I don't see anything like that in CPI's catalog. It seems like it's a combination of parts of their "E1120 Low Simulated Roller Angle Mount", attached to a custom base, plus the limit switch itself. It looks to me like the stainless trigger has broken off.

    I would suggest you reach out to CPI at sales@cpi-nj.com. Include the application, your photo, and Phil's photo. They may be able to tell you if they made that part custom, and perhaps where to get it. CPI sells off-the-shelf stuff via distributors, but also to manufacturers directly. I needed a specific type of switch and mount, and their sales team was very helpful in locating a vendor that stocked it.
     
  8. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Very helpful.. thank you!
     
  9. Stee6043

    Stee6043 Well-Known Member GOLD Sponsor

    Jun 1, 2015
    West Michigan
    1997 Sundancer 400
    7.4L Gassers
    Replacement parts? Shoot...seems like a butt splice connecting those two black wires ought do the trick quite nicely :)

    That whole thing reminds me of the anti-reverse circuit on my riding lawn mower...
     
    Irie308 likes this.
  10. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Ok, so i found the part however its on the Princess Yachts website. Guy has 1 in stock but won't sell it to me without a princess hull ID #. Otherwise the part is manufactured by Dometic and their resellers are about 12 plus weeks out on getting it in. Any has a Princess hull ID number handy???? LOL.

    https://pyaparts.com/seacock-safety-switch/
     
  11. Irie308

    Irie308 Well-Known Member GOLD Sponsor

    May 28, 2013
    CT
    2004 420 DB, GHS Hydraulic Lift
    Garmin 8600/Garmin 1222 plus
    AB Mares 10 VSX with 30 hp Tohatsu
    Cummins 450C 8.3 L Turbocharged
    Ok, so i found the part however its on the Princess Yachts website. Guy has 1 in stock but won't sell it to me without a princess hull ID #. Otherwise the part is manufactured by Dometic and their resellers are about 12 plus weeks out on getting it in. Any has a Princess hull ID number handy???? LOL.

    https://pyaparts.com/seacock-safety-switch/
     

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