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  1. #1
    Join Date
    Aug 2009
    Location
    Montana
    Posts
    3,062

    Default How much water should be still in ballast bag after emptying?

    This might be a dumb question...........call me newbie!
    How much water should be left in the fat sac after emptying with pump? Maybe it's normal but there's enough that it sloshes around a bit. Didn't know how much the pumps were supposed to be sucking out?

    Also - seems like it empties alot of it if we all sit on one rear side or the other and let the water accumulate there (that's a no brainer)!! Just a pain to tell the passengers it's time to get up and gather.

    2007 Moomba Outback - going, going, GONE
    2015 "NOT A MOOMBA"

    Why Not? Play Hard! Get wet

  2. #2
    Join Date
    Nov 2003
    Location
    Land O Lakes, Florida
    Posts
    6,377

    Default

    Quote Originally Posted by viking View Post
    there's enough that it sloshes around a bit. .

    sounds about right.
    Hey, Its Moomba time

    Its all about the dash - enjoy the dash, as that is your time between the dates
    13 Mobius LSV-sold
    08 Mobius LSV-sold
    03 Mobius LSV-sold
    life is about finding the balance between being a responsible adult and staying young at heart

  3. #3
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,017

    Default

    Quote Originally Posted by viking View Post
    This might be a dumb question...........call me newbie!
    How much water should be left in the fat sac after emptying with pump? Maybe it's normal but there's enough that it sloshes around a bit. Didn't know how much the pumps were supposed to be sucking out?

    Also - seems like it empties alot of it if we all sit on one rear side or the other and let the water accumulate there (that's a no brainer)!! Just a pain to tell the passengers it's time to get up and gather.
    Viking,

    There will be several gallons left if you just hit the switch. I always completely empty the sacs so I have to raise up the end opposite where the hoses attach to get most of it out. Then I disconnect them and drain the rest out with gravity. Another trick is to empty while underway or starting out (bow up) as that forces the water towards the hose end. You get most of it out that way.
    Al

    2006 Mobius LSV

  4. #4
    Join Date
    Jul 2009
    Location
    Northern California
    Posts
    129

    Default

    With the '08 and older boats, you can improve the draining of the bags by moving the pump directly off the bag. I just installed the Tsunami 800's with a quick disconnect right off the bag. There is about a 4" line with a 90 degree quick disconnect elbow. This drastically improves the draining, and it also removes the pumps from the engine compartment and the heat. Another nice feature is its a 5 minute job to replace the pump. You can still quick disconnect the bags and remove them easily with this setup.

    Another way to improve draining is make a ramp, and elevate the front of the bags upward to drain the water towards the pump. Adding vent lines will also help drain the bags, because it pushes the air out when you are filling them. When you go to drain the bags there is much less air pockets to stop the priming of the aerator pumps.

    The '08 and older boats use aerator style pumps, they will not pull a prime, so the water must be available for the pump to work properly. The '09 and new boats went to the impeller driven JABSCO ballast puppy's, they will pull a draft/prime and drain the bags much better.

    If you are set up properly, the pumps will remove about 95% of the water. You should not be able to hear any sloshing of water in them.
    2008 SUPRA Launch 22 SSV
    2011 Malibu VLX
    2013 Malibu VLX

  5. #5
    Join Date
    Aug 2009
    Location
    Montana
    Posts
    3,062

    Default

    Thanks guys..............

    2007 Moomba Outback - going, going, GONE
    2015 "NOT A MOOMBA"

    Why Not? Play Hard! Get wet

  6. #6
    Join Date
    Aug 2009
    Location
    Montana
    Posts
    3,062

    Default

    I only have the rear bag as my outback is DD. The drain pump is back up under the the rear of the boat close to the drain outlet by the rear storage compartment (probably 3 ft of hose before pump). I'm sure there is a better setup but the fill pump in in the engine compartment with the "sprinkler type" Orbit valve.

    Quote Originally Posted by Fman View Post
    With the '08 and older boats, you can improve the draining of the bags by moving the pump directly off the bag. I just installed the Tsunami 800's with a quick disconnect right off the bag. There is about a 4" line with a 90 degree quick disconnect elbow. This drastically improves the draining, and it also removes the pumps from the engine compartment and the heat. Another nice feature is its a 5 minute job to replace the pump. You can still quick disconnect the bags and remove them easily with this setup.

    Another way to improve draining is make a ramp, and elevate the front of the bags upward to drain the water towards the pump. Adding vent lines will also help drain the bags, because it pushes the air out when you are filling them. When you go to drain the bags there is much less air pockets to stop the priming of the aerator pumps.

    The '08 and older boats use aerator style pumps, they will not pull a prime, so the water must be available for the pump to work properly. The '09 and new boats went to the impeller driven JABSCO ballast puppy's, they will pull a draft/prime and drain the bags much better.

    If you are set up properly, the pumps will remove about 95% of the water. You should not be able to hear any sloshing of water in them.

    2007 Moomba Outback - going, going, GONE
    2015 "NOT A MOOMBA"

    Why Not? Play Hard! Get wet

  7. #7
    Join Date
    Aug 2009
    Location
    Dale Hollow Lake, TN
    Posts
    80

    Default

    Manipulate your bags and leave NOTHING in them. Easy to do, and keeps your bags from getting skunky.
    Best Regards,

    Jason

    2007 Moomba Mobius LSV Sandrock/Black
    EXILE Equipment
    4-XM-7 Tower Speakers
    6-XT-65 Cabin Speakers
    1-Big12 Subwoofer
    Amps--Xi 1500.1, Xi 800.4 and 2--S400.4

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