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08-15-2021, 12:33 PM #1Junior Member
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- Aug 2021
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2016 surf front ballast not filling
My two rear ballasts fill no problem, but my front ballast is not filling. When I flip the front switch, the pump turns on just like when I turn on the right and left ballast. But no water fills the front sack. Any ideas of how to trouble shoot?
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08-15-2021, 12:45 PM #2
Bad or old ballast impeller that can't prime? Is the ball valve open? I'd inspect the ballast impeller and ensure ball valve is open. If the impeller looks bad or is missing fins then it won't prime (suck in water).
2019 Moomba Max "MOOMBAE"
Mods: Wakemakers upgrade + 500 lbs of lead
2016 Yamaha AR192 - sold
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08-15-2021, 01:42 PM #3Junior Member
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- Aug 2021
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I was able to open the pump. The impeller looked fine. However, I was afraid to activate the pump while I had it open. Can you tell me how to check the ball valve? I am also wondering if the intake line is plugged, but I can’t figure out where to look to see if it is plugged with seaweed.
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08-15-2021, 01:47 PM #42018 Supra SA400 aka The Ron Burgandy
2011 Sea-Doo Wake 155
2015 Mojo Surf, sold...2013 Axis A22 Recon Edition, sold...2010 Axis A22, sold...2007 Maxum 1800sr3, sold
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08-15-2021, 01:58 PM #5
Also, an impeller might look like it is good, when in fact it is bad and used up. New impellers are flexible and the ends are round. Used up ones will be stiffer and the ends will be squared off. Front pump impeller normally needs replaced faster than rears on 3 pump systems as they run for longer filling and draining.
2018 Supra SA400 aka The Ron Burgandy
2011 Sea-Doo Wake 155
2015 Mojo Surf, sold...2013 Axis A22 Recon Edition, sold...2010 Axis A22, sold...2007 Maxum 1800sr3, sold
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08-15-2021, 02:28 PM #6Junior Member
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- Aug 2021
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- 9
That is a great easy idea of just swapping another impeller. Since the front ballast pump is the harder one to get to, the starboard pump would be easy to swap.
I will search for the ball valve. I am having trouble following the lines to find any valves - they tubing ends up hiding behind/under the engine or up in hard to see sections of the body.
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08-15-2021, 04:56 PM #7
What model of boat are we talking about? Most modern Moomba boats consist of a Center tank and a bag under the bow seats for the front ballast. The front bag fills from the over flow from the Center tank and won’t begin filling until the tank is pretty much full. When you first begin to fill the front you will hear the pump running but won’t see the bag filling for a few minutes.
2020 Moomba Mojo
2008 Mastercraft Prostar 197 40th Anniversary
Owner Ness Lake Watersports
Wakemakers “Exact Fit” Bags + Lead = 4,700 ballast
Audio by Wetsounds, MTX, JL Audio, Clarion
15 X 13.00 ACME prop
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08-15-2021, 05:20 PM #8Junior Member
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- Aug 2021
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- 9
this is a 2016 Moomba Mojo Surf. I am not sure if there is a center tank since I just bought this boat. The previous owner told me about the bags, but not a tank. I never see the bag filling, even at the very end of the fill time. All I really know is that the ballasts stop filling because the time setting tells it the bag is full, not because there is a sensor that says the ballast full.
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08-15-2021, 05:51 PM #9
Yea I would for sure follow the lines and find the ball valve to ensure it’s set to open.
2019 Moomba Max "MOOMBAE"
Mods: Wakemakers upgrade + 500 lbs of lead
2016 Yamaha AR192 - sold
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08-16-2021, 07:51 AM #10
I have the same boat but a 2015 model. There is a tank in the floor. You can see the level on the side of it through the middle plug port (cover in floor next to the driver's seat). It has to fil first then it spills into the bow bag. Takes 12-13 minutes to fill them both all the way. The ball valve that are looking for is under the transmission/v-drive dog house. Once you pull it out, they will be on the port side. There should be 3 of them, make sure all are open, handle parallel with the hose.
If the pump keep turning off while trying to fill, go through the screens and reset your ballast level to empty on the center. The timers should start over this way, otherwise you get 30 seconds or so of additional runtime by turning the switch off and back on again.2015 Moomba Mojo Surf Edition
4,000lbs
Manual Flow