Need a ballast reset procedure for 2021 mojo w flow 3.0

[Emilware]

All,
Today is my second day with my brand new 2021 mojo with g6 ballast system. I have to say that boat is awesome but the wake is still a struggle. Mainly because of the ballast issues.
FYI, I have burped the begs so there should be no more air in them and I also attempted to rest the ballast in the vessel settings menu but I’m not sure if I did it right. In my menu there is Reset, Empty and Full.

Can someone provide me with the procedure when to select what?

Thanks in advance

[Hayden]

Did you plumb in a new bag? If you did not, I don't believe you needed to reset the ballast volume.

I have some opinion on this but I'm still working through it myself. Keep in mind I've plumbed in additional bags, so I've needed to reset my timers as well as my bag volumes.

First thing I did was empty everything. Set ballast volume to empty. Fill everything, this took a few tries to get the timers correct. Once all is filled, set to full.

This has mostly worked but I've had to reset the volume a couple times due to not completely emptying a bag beforehand.

Not sure that anyone's posted an official guide or if there's anything more to it than what I've described. Let me know if there is!

[Emilware]

Did you plumb in a new bag? If you did not, I don't believe you needed to reset the ballast volume.

I have some opinion on this but I'm still working through it myself. Keep in mind I've plumbed in additional bags, so I've needed to reset my timers as well as my bag volumes.

First thing I did was empty everything. Set ballast volume to empty. Fill everything, this took a few tries to get the timers correct. Once all is filled, set to full.

This has mostly worked but I've had to reset the volume a couple times due to not completely emptying a bag beforehand.

Not sure that anyone's posted an official guide or if there's anything more to it than what I've described. Let me know if there is!

No I did not add any additional bags.

So what does the Reset do? And when do I use it? Same with Full and Empty.


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[Holdmybeer]

First off, congrats on the new boat. Secondly, the timers control the display that shows "FULL" or "EMPTY". There aren't sensors in the bags. The newer boats have sensors in the vent lines that register full just before water starts to vent. These can be set to zero or full at anytime during the process, or at any level.

The trick is to know how long it takes to fill the bags and then set the timers accordingly. Then the gauges will show the correct level based on the time they were running.

900lbs bag is ~108 gallons of water
pumps are 11gpm (G3 is 1 pump per rear bag, G6 is 2)
Timers for G3 system should be 9.5-9.75 minutes, G6 system is 4.75-5 minutes until full.

If the bag are completely empty and you zero the display, timers set accordingly, you should be able to time the fill time and check against your display. G6 system stop at 2.5 minutes and it should be at 50%.

Hope that helps. Also, are you just playing around to learn the system? Day 2 of a boat and loading ballast, I thought there was break-in for 10hr first.

[Emilware]

Thanks for the input Holdmybeer
My timers are set to 6:30 by the default from the factory.
My main question is when should I hit reset?
Should I just manually empty the bags and hit Empty? Or should I hit reset first then empty.

Is it the same for full?

I also noticed that my bags loose water approximately 25% after about 10min of running but the indicator is still showing 100.

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[Holdmybeer]

Thanks for the input Holdmybeer
My timers are set to 6:30 by the default from the factory.
My main question is when should I hit reset?
Should I just manually empty the bags and hit Empty? Or should I hit reset first then empty.

Is it the same for full?

I also noticed that my bags loose water approximately 25% after about 10min of running but the indicator is still showing 100.

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You don't have to hit reset at all. That is the point here. They are helpful indicators not really monitoring the water in the bags. The water you are losing is most likely through the overflow vent once you get moving, or AutoWake draining them to keep your pitch and angle setting.

Notice when you lose water the gauges don't change? That is because the gauges are not reading anything, they are just visual representations of what the system is trying to do based on the timers.

Fill the bags, and reset them to FULL. Then drain them, and see where they end up. At 6.5 minutes, on G6 ballast setup, the rear bags will be empty before the gauge says empty. Gauge will most likely say 25%.
This is want I mean by adjusting timers until the gauge somewhat matches what is actually happening. The timer should be closer to 4.5 minutes and then reality will "match" the gauge calculation.

Hope that helps

[jcredible]

My experience is that when running at higher RPMs, the bags fill quicker...so think this scenario:

1) Fill at 600 RPM - Hits 100% full.
2) Empty bags at 1100 RPM - They empty and you here them running dry....but the screen still shows 20% full.
3) You reset the levels to 0% or ""Empty" under all.

Maybe I am misunderstanding the ask...but that is how I interpret it.

[Holdmybeer]

My experience is that when running at higher RPMs, the bags fill quicker...so think this scenario:

1) Fill at 600 RPM - Hits 100% full.
2) Empty bags at 1100 RPM - They empty and you here them running dry....but the screen still shows 20% full.
3) You reset the levels to 0% or ""Empty" under all.

Maybe I am misunderstanding the ask...but that is how I interpret it.

Correct.

But the engine RPM's have nothing directly to do with the ballast pumps. The increase voltage from the alternator is allowing the pumps to run at 14V instead 12V making them speed up. Just wanted to clarify to not confuse the OP.

Again, the gauges are just there as a visual aid, not a sensor measured level.

[jcredible]

The 7" screen on Moombas with a 2019 and newer introduces a sensor into the computer though.

When it detects the bags are full with the pressure sensor(from the bottom of the bag), it will immediately bump from 70% to 100% and have a little red dot next to the 100.

The problem I find with this is that you need to burp the air from your bags and then refill it a few times to fill back up. The diaphragms will help with this throuhgout the day of letting air out slowly....but usually need to burp both sides at the first fill and manually flip the toggle switch a few times to full fill again as the computer shows 100%.

[Bigs28]

I have the new 21 mojo as well but unfortunately i have to vent the bags everytime. I would approximate when they fill they are 10% air everytime. I vent them and then toggle the switch to fill again.

[jcredible]

I feel like when the vent line was ontop of my 2017 it let the air out first before overflowing with water. Seemed to require less burping...but I think the sensor setup on the bottom is for the following reasons:

1) G6 has 2 pumps per bag and you will overflow without it keeping up with a single hose.
2) The sensor needs to detect water....not sure if there is an issue with air pressure too.

Either way a small inconvenience....it would be cool if they had a quick release check valve like Sumo does! - https://www.wakemakers.com/straight-line-link-cap.html

[Emilware]

Do you think that the burping need will eventually go away after sever cycles?

One other think I found strand is that when I hit the Go Home preset only right and center emptied out. I had to manually switch left to empty.
Perhaps there is a glitch or something is not right. That is why I was asking for a procedure.


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[Hayden]

The 7" screen on Moombas with a 2019 and newer introduces a sensor into the computer though.

When it detects the bags are full with the pressure sensor(from the bottom of the bag), it will immediately bump from 70% to 100% and have a little red dot next to the 100.

The problem I find with this is that you need to burp the air from your bags and then refill it a few times to fill back up. The diaphragms will help with this throuhgout the day of letting air out slowly....but usually need to burp both sides at the first fill and manually flip the toggle switch a few times to full fill again as the computer shows 100%.

This is the first time I've ever heard of a weight sensor on the bottom of the bag. Are you certain about this? How and where is the weight sensor wiring to? Do you instead mean the clip-on water detection sensor thats on the top of the vent line?

I have pulled my stock bags out of my boat and I did not see any wiring or module or anything like that. Can you describe this further?

[Emilware]

This is a first time I hear of weight sensors. It’s a great idea but …

This afternoon I took her out again and once again I had to burp both rear bags. Still Tom of air coming out. To be honest this is quite frustrating. Any suggestions?


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[996scott]

I have the new 21 mojo as well but unfortunately i have to vent the bags everytime. I would approximate when they fill they are 10% air everytime. I vent them and then toggle the switch to fill again.

Same issue with my 21 Craze. I get a lot of air and have to burp them and then use the toggle a few times to top off. Drives me crazy!

[Emilware]

Same issue with my 21 Craze. I get a lot of air and have to burp them and then use the toggle a few times to top off. Drives me crazy!

Thank you for sharing. At least I know that I’m not going completely crazy. There is gotta be a way to eliminate that. I have two friends with Supra’s and they have non of these issues.
Would the extra timer on empty have something to do with it?
Just think, if the pump is running dry and crating vacuum then it’s going to draw air in.

My plan is to zero out the extra timer tomorrow and then see what happens.


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[Emilware]

So today I had a chance to test my theory about over emptying ballast bags.

First of all the dual pump G6 upgraded Valleyside up from factory comes with six minutes and 30 seconds timer. I have confirmed that this is the time that you need to use. Any less And your ballast won’t be filled all the way.

So now back to over emptying ballast bags. Since there is no sensor such as overflow, or pressure I could tell you that the bag is totally empty the only way that the system can tell it’s bye running until the time runs out.
Once I change the extra time or to zero and empty out all ballast all pumps was shut off without running on empty.
I drove for a couple minutes and then I filled them back out to full and there was almost no air in the bags.
Hopefully this will do the trick.
I will keep you guys posted.


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[Holdmybeer]

Add check valves to the vent lines.
It will pancake the bags flat and remove all water but won't allow air back in through the vent line.

Think deflating an air matress, but filled with water. You will fill completely and burp bags once. After that, the check valve will keep air from getting back in

[Emilware]

Add check valves to the vent lines.
It will pancake the bags flat and remove all water but won't allow air back in through the vent line.

Think deflating an air matress, but filled with water. You will fill completely and burp bags once. After that, the check valve will keep air from getting back in

Holdmybeer that is an excellent idea. That is precisely what my thinking was. Have you applied this solution? Do you have any pictures of the installation?


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[Emilware]

Is this the valve you had in mind? https://uploads.tapatalk-cdn.com/20210718/1a4b83773db5ac5665b5038fae25071c.jpg


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[Holdmybeer]

I do not have this installed.
My 2015 system is slow and doesn't have your issues.
Check another thread. Guy did this to his Max and works great.

[Emilware]

So my issue with bags getting air in them continues. Adjusting the timer seemed to help
But didn’t eliminate the issue. After 3 or so cycles there was a substantial amount of air in the bags.
I going to have a chat with the dealer and most likely start working on auto venting.

My question why don’t the auto vents work in the Enzo Fatsac vent the air as intended? Especially since there are few in each bag.

Any ideas?

https://uploads.tapatalk-cdn.com/20210719/e498e927e2a4087ff12c7592e1451dfe.jpg


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[SONIC]

So my issue with bags getting air in them continues. Adjusting the timer seemed to help
But didn’t eliminate the issue. After 3 or so cycles there was a substantial amount of air in the bags.
I going to have a chat with the dealer and most likely start working on auto venting.

My question why don’t the auto vents work in the Enzo Fatsac vent the air as intended? Especially since there are few in each bag.

Any ideas?

https://uploads.tapatalk-cdn.com/20210719/e498e927e2a4087ff12c7592e1451dfe.jpg


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Have you confirmed that they have those auto vents?
The ones I have seen have the kind you have to unscrew to vent.

[jcredible]

2 things guys:

1) It is NOT a weight sensor...but a sensor on 2019 or newer that detects waterflow coming through the overflow(overflow is bottom of the bag). It resets the computer with a little red dot....nothing to do with weight...has to do with pressure\water flowing through the overflow.

2) Those little diaphragms - Those come on both stock bags and WM upgrade bags....they let air out slowly throughout the day....but 2 pumps on G6 won't vent them quick enough...they help more throughout the day!

[Emilware]

Have you confirmed that they have those auto vents?
The ones I have seen have the kind you have to unscrew to vent.

I do have the automatic vent caps shown before and then manual air vent cap.
There seem to be no air coming out of the automatic vent caps.


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[TXSurf4]

I do have the automatic vent caps shown before and then manual air vent cap.
There seem to be no air coming out of the automatic vent caps.


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I have all of my parts to upgrade my Makai to the WM 1345s in the rear and I am putting a top vent on the bags that ties into the over flow as Haknslash has done in the link below. I have pulled my rear trays (for sale soon LOL) out of my Makai as I have to burp the bags every time and getting to the fitting was a pain with them in there. I am also going to be putting check valves in all 4 of my overflow lines as this will help minimize air pulled back in to the system and help to fully drain the bags as mine are never completely empty and usually hold 50ish lbs of water. Check out Haks thread here and it might help you out.

https://forum.moomba.com/showthread.php?36316-Moomba-Max-Wakemakers-midship-overflow-venting-tutorial