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  1. #1
    Join Date
    May 2017
    Location
    Alberta, Canada
    Posts
    305

    Default Ballast Bag Orientation

    I'm doing the G3 Upgrade from Wakemakers, (reversible pumps, etc), and I'm wondering if there's any reason not to turn the rear ballast bags around to have their fill/drain quick connect points facing towards the bow? Previous setup had the connections at the stern but thinking on it now, is there any reason why you couldn't/wouldn't do it this way?

    My three new reversible pumps under mounted right about the transmission and so lengths of hose would be shorter, which I assume is better. Are there any issues I'm not thinking of in this scenario? Anything to be aware of?

    Ballast Bag Orientation.jpg
    2021 Mojo, 6.2L Raptor 400/1.76, Acme 3407 15.5x13, G6, Flow3, +6500 lbs ballast
    2005 Mobius LSV (sold)
    Windermere Lake, B.C., 2800' Elevation
    2021 Mojo Mods

  2. #2
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,143

    Default

    Because the boat typically tilts towards the stern, so having the drains towards the front may not allow them to drain completely


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    2017 Moomba Craz

  3. #3
    Join Date
    May 2017
    Location
    Alberta, Canada
    Posts
    305

    Default

    So with reversible pumps and check valves on the vent lines, it shouldn't make a difference, correct? Bags will drain flat?
    2021 Mojo, 6.2L Raptor 400/1.76, Acme 3407 15.5x13, G6, Flow3, +6500 lbs ballast
    2005 Mobius LSV (sold)
    Windermere Lake, B.C., 2800' Elevation
    2021 Mojo Mods

  4. #4
    Join Date
    Aug 2017
    Posts
    1,382

    Default

    Quote Originally Posted by Hayden View Post
    So with reversible pumps and check valves on the vent lines, it shouldn't make a difference, correct? Bags will drain flat?
    I am usually draining while cruising, sending water to the stern via gravity. Therefore, drain and fill work best there. I don’t think there is always a perfect vacuum in your bags to accomplish what you want.

    Honesty never heard of anyone flipping around and would suspect it could be problematic in this way.


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  5. #5
    Join Date
    Aug 2011
    Posts
    2,522

    Default

    Quote Originally Posted by Hayden View Post
    So with reversible pumps and check valves on the vent lines, it shouldn't make a difference, correct? Bags will drain flat?
    Yes, it'll drain, but you want the vent towards the front so you get max fillage. ��
    http://www.instgram.com/jlyons30
    2002 Moomba Mobius LSV - Sold
    2006 Moomba Mobius LSV - Sold
    2017 Moomba Craz - Enzos, Lead

  6. #6
    Join Date
    Aug 2011
    Location
    Commerce Lake, MI
    Posts
    2,143

    Default

    Quote Originally Posted by parrothd View Post
    Yes, it'll drain, but you want the vent towards the front so you get max fillage. ��
    That too


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    2017 Moomba Craz

  7. #7
    Join Date
    Apr 2013
    Location
    Knoxville TN
    Posts
    3,309

    Default

    On my 2007, I put the pumps by the v-drive and fill the ballast bags in the front of the bags. 1100s. The logic years ago was going for the shortest distance.

    Last year I was thinking about plumbing them from the transom (back) side for the gravity effect, but the current system works, so I did not mess with it. No timers, so I'm usually listening to the pumps to let me know when they are done draining.

    If I drained them while driving it would be hard to hear the pumps over the noise of the motor and wind.

    When I'm back at the ramp and on the trailer, I make sure they are raisins. Since I make sure nothing is going to blow off the boat, checking the bags is not a big deal.

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    2018 Supra SL400

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