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  1. #1
    Join Date
    May 2020
    Location
    Nashville
    Posts
    225

    Default Ballast pump not working but has power

    Took her out for the maiden voyage and everything is working well except for starboard back ballast pump. 2018 Moomba Mojo. It is getting power and I can here it running. I went ahead and changed the impeller and the old one wasn’t in bad shape. The pump itself has no foreign bodies in it. Where else can I check to trouble shoot why water won’t flow?
    2018 Moomba MOJO
    4100lbs. ENZO's, Center Tank, IBS
    780lbs. Lead Wake
    Raptor 400
    Surf Prop: OJ 945
    2019 Ford F150 FX4
    5.0L V8

  2. #2
    Join Date
    Oct 2016
    Location
    Tims Ford Lake TN
    Posts
    453

    Default

    Elementary thing but did you make sure the through hull valve is open?
    2016 Mojo Surf
    Raptor 400
    1100 rear bags / 500 IBS / 600 LeadWake
    Exile amps/tower - Kicker in-boat
    FAE

  3. #3
    Join Date
    Jan 2021
    Location
    South Florida
    Posts
    274

    Default

    Check for any clogs in the hoses.

  4. #4
    Join Date
    Apr 2022
    Location
    Oklahoma
    Posts
    22

    Default

    Having the same issue but with the front / center ballast. Rear are both filling.

    - are there multiple valves for each ballast?

    - location of the valves on the hill? Boat is on a lift
    Last edited by tpjsooner; 05-15-2022 at 09:53 AM.

  5. #5
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    1,251

    Default

    There are multiple ball valves but they are usually next to each other. I can reach all of mine with the transmission dog house removed.
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  6. #6
    Join Date
    Apr 2022
    Location
    Oklahoma
    Posts
    22

    Default

    Yes, got it. They were all open. Next order of operation is to check the pump for debris and check or replace the impeller?

  7. #7
    Join Date
    May 2020
    Location
    Nashville
    Posts
    225

    Default

    I’ll check the ball valves and the inflow ports for debris.

    Thanks for the ideas. Will report back.
    2018 Moomba MOJO
    4100lbs. ENZO's, Center Tank, IBS
    780lbs. Lead Wake
    Raptor 400
    Surf Prop: OJ 945
    2019 Ford F150 FX4
    5.0L V8

  8. #8
    Join Date
    May 2020
    Location
    Nashville
    Posts
    225

    Default

    Ball valves are in correct position. I did the best I could clearing the hoses and found no debri. I won’t be able to test until I hit the water again. I hoping it was just the impeller.
    2018 Moomba MOJO
    4100lbs. ENZO's, Center Tank, IBS
    780lbs. Lead Wake
    Raptor 400
    Surf Prop: OJ 945
    2019 Ford F150 FX4
    5.0L V8

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