




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
1080lbs. Lead Wake
Raptor 400
Surf Prop: OJ 945
2019 Ford F150 FX4
5.0L V8
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
Check for any clogs in the hoses.
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.
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
Yes, got it. They were all open. Next order of operation is to check the pump for debris and check or replace the impeller?
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
1080lbs. Lead Wake
Raptor 400
Surf Prop: OJ 945
2019 Ford F150 FX4
5.0L V8
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
1080lbs. Lead Wake
Raptor 400
Surf Prop: OJ 945
2019 Ford F150 FX4
5.0L V8