Larger fresh water tank

Discussion in 'Installation Photos/Specs' started by mmcguire2002, May 12, 2019.

  1. mmcguire2002

    mmcguire2002 Member

    563
    Mar 3, 2008
    MDR, CA
    2003.5 Sea Ray 340 DA
    8.1 Horizons
    has anyone installed a larger fresh water tank on a 2003.5 340 SDA?
     
  2. Sublimetime

    Sublimetime Active Member

    614
    Oct 22, 2007
    clifton nj
    420 da
    454
    The problem is space, and access to it...

    Maybe a bladder and a second pump.
     
  3. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    Have you looked into a water maker?
     
    Jaybeaux likes this.
  4. mmcguire2002

    mmcguire2002 Member

    563
    Mar 3, 2008
    MDR, CA
    2003.5 Sea Ray 340 DA
    8.1 Horizons
    I have, however I use the boat in spurts, so pickling and unpickling for 3 to 7 days of use, then not using again for a month or two, doesn’t seem optimal.
     
  5. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    I picked up a portable water bladder to use when I'm on the hook for an extended period of time.
     
  6. be_prepared

    be_prepared Active Member GOLD Sponsor

    256
    Oct 12, 2015
    Mattapoisett, MA
    2002 Sea Ray Sundancer 340DA
    Twin Mercruiser Horizon 8.1 inboards
    My vintage (2002) 340DA only holds 40 gal fresh water, it's a real limiting factor sometimes. If you're in a full service harbor with a water boat, like in Block Island, it's not a problem, they'll come out and refill you on the hook, but if you're in a nice quiet out of the way anchorage, 40 gals won't last too long.

    We have a couple of the blue 5 gallon potable water containers as backup. We just pour them into the water fill when we run out. The bladder sounds interesting, because presumably it can be rolled up and put out of the way when not in use? How/where do you stow that when full, and also how do you tie it into the water system? Do you pump or siphon it into the boat's water fill when the regular tank runs low? Thanks.
     
  7. Little Ducky

    Little Ducky Well-Known Member

    Jun 5, 2017
    Dickson, TN / Chattanooga, TN
    1998 290 Sundancer
    Twin EFI 5.0L w/Alphas
    Kohler 4kW
    Just use a little bit of water treatment and you should be fine.
     

    Attached Files:

  8. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    The bladder I'm using is a pvc type material, and stores easy when not needed. You can easily attach a small pump to transfer water. It is a simple solution.....Top off the boats water tank after you have use enough water through the fill cap. I keep my up on the bridge and gravity feed with a garden hose after my first day on the hook.
     

Share This Page

Show Sidebar