Ballast won't drain

[stx.dead.I]

Just got done doing a summarizing took the boat onto the lake to test it out and cannot get the left ballast to drain. The other two drained fine. The left side filled up fine but when I flip to empty nothing happens. I don't hear the pump running. What yall think my problem is?

[aerolland]

Fuse or breaker under the dash. Had the same thing happen to my front ballast bag. Replaced fuse and worked fine, still works a season later. Not sure why it blew.

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[stx.dead.I]

Fuse or breaker under the dash. Had the same thing happen to my front ballast bag. Replaced fuse and worked fine, still works a season later. Not sure why it blew.

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Do you happen to have a fuse diagram

[aerolland]

No, but mine were labeled front, left, right. I think they were 10 amp fuses so I just pulled one at a time and visually inspected. I can take a picture if need be

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[stx.dead.I]

No, but mine were labeled front, left, right. I think they were 10 amp fuses so I just pulled one at a time and visually inspected. I can take a picture if need be

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Just swapped fuses until one did something to the ballast switches. Rotated those out and it's still not emptying. The left ballast pump clicks on when filling toggle but won't click on for empty toggle

[aerolland]

What year and model? Are they reversible pumps?

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[MJHSupra]

If you have some that looks like this, you have the 'sprinkler value system'.
One pump to fill.
A different pump to empty.

https://c1.staticflickr.com/8/7327/8870564271_1621837a49_c.jpg

Those boats usually have Rule Pumps to Drain them:

https://c1.staticflickr.com/9/8407/8870582117_2413f80d95_c.jpg

[MJHSupra]

Check the volts at the pump. If nothing, look at fuses next.

If you have volts at the pump, the pump may be bad or stuck. They go bad.
Probably a $50 part to replace. Dealer or an online place like skidim.com

[MJHSupra]

These are the reversible pumps, usually made by Johnson or Jabsco.
Usually newer model boats. Guessing 2009 or 2010 + models.

https://c1.staticflickr.com/4/3940/33059318314_92295effe6.jpg

[jmvotto]

Empty pump might be shot

[padge]

Fill it until it spills out the side of the boat then hit drain. Sometimes mine doesn't drain and that works.


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[stx.dead.I]

Fill it until it spills out the side of the boat then hit drain. Sometimes mine doesn't drain and that works.


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Will try that out

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[stx.dead.I]

What year and model? Are they reversible pumps?

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2003 mobius lsv I don't know if they are reversible

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[aerolland]

Non reversible for sure. Will have one large pump and manifold to fill each bag and each bag will have individual smaller pump to drain. Try to fill until that bag pukes over the side as stated before, or if you're no longer on the water, use your garden hose to fill the drain tube from the outside port on the hull. That will help prime the drain pump as well. If the drain pump is indeed working you are fighting an air lock which is very common with aerator style pumps.

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[stx.dead.I]

Non reversible for sure. Will have one large pump and manifold to fill each bag and each bag will have individual smaller pump to drain. Try to fill until that bag pukes over the side as stated before, or if you're no longer on the water, use your garden hose to fill the drain tube from the outside port on the hull. That will help prime the drain pump as well. If the drain pump is indeed working you are fighting an air lock which is very common with aerator style pumps.

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Am I correct in believing this system has the three bags that all share the same drain pump?

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[aerolland]

No, that's backwards. They share the same fill pump. Individual drain pumps near each bag

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[wolfeman131]

Incorrect.

Single pump that goes to a manifold that fills the bags.

Each bag has its own drain pump.

I'm betting your drain pump on that bag needs to be replaced.