Adding a Macerator

Discussion in 'General Maintenance/Repair Questions' started by wayne0, Jun 28, 2020.

  1. wayne0

    wayne0 Active Member

    480
    May 4, 2014
    Newburyport, Ma.
    2000 340 Sundancer
    Twin 7.4 ltr.V-drives
    Thinking about adding a macerator to my 2000 340DA. There is a place on the panel for the switch, but is the wiring there? Aside from adding the pump and a thru hull, what else is involved? is there a fitting on the tank, or do I have to tee off the pump out line?
    TIA
     
  2. Henry Boyd

    Henry Boyd Well-Known Member GOLD Sponsor

    Apr 24, 2007
    Newburyport, on the peaceful and serene Merrimack
    ‘09 Sabre 38 Hardtop Express “Serenity”
    Volvo D6 w/IPS450 Pods
    I think rather then messing around with trying to cut A hole in the tank and install a dip tube, easier to just to install a Y valve on the pump out line. Tail of the Y points to tank, one branch goes up to pump out fitting, other line goes to pump and through hull. Basically you would just existing pump out line and insert the Y valve, and then attach the new stuff to the remains Y branch.

    On wiring, there should be a plug already in place near or on the tank. You’ll need to consult your wiring diagram that will give you color codes of the wires. The OEM wiring included a lock out switch on the sea cock that prevented the pump from energizing if the seacock was closed. You can really do some nasty work if you run the macerator with the sea cock closed. If you don’t opt for the safety switch you may have to modify the wiring by adding a permanent ground.
     
  3. bobeast

    bobeast Dance the Tide SILVER Sponsor

    Oct 22, 2017
    Isleton, CA
    2002 310DA
    350 MPI w/V-drives
    Y valve makes sense for the input, but for the output, wouldn't you have to add another seacock?
     
  4. wayne0

    wayne0 Active Member

    480
    May 4, 2014
    Newburyport, Ma.
    2000 340 Sundancer
    Twin 7.4 ltr.V-drives
    I would say yes.
     

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