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Old 07-22-2017, 07:11 PM
BBQ BBQ is offline
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Join Date: Feb 2017
Boat: Mastercraft NXT 22, 2017,
Location: Southeast
Posts: 1
NXT 22 Ballast Empty but do not Fill

I have a 2017 NXT 22 that I have taken out 12 times and never had problems filling my starboard stock bag until this week. It empties fine. I can manually fill it with an external tsunami pump. I have tried to turn on the pump while in reverse but it just won't fill. Could it need to be primed or any thoughts?
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Old 07-23-2017, 01:00 PM
Randy801s Randy801s is offline
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Join Date: Aug 2016
Boat: Mastercraft NXT 22
Location: Northwest
Posts: 11
Had same problem most likely it is water locked. You have a low spot in the line. Try to force some water trough it.
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Old 05-20-2018, 11:29 AM
dleath dleath is offline
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Join Date: Apr 2017
Boat: NXT 22
Location: Southeast
Posts: 6
My starboard pump does the same. Only fix I have found is to open the engine cover, remove the big black panel on the port side of the boat (side opposite of the starboard bags) this is the side with the pumps. My pump that fills the starboard bags is the pump closet to the engine. Then twist the top of the pump to bleed the line (water will gush in for a second) then close it, and turn the pump on. It sucks when the engine is hot, but it works for me for now.
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Old 05-20-2018, 10:17 PM
Ry_nihilation Ry_nihilation is offline
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Join Date: Apr 2018
Boat: 2016 Mastercraft NXT22
Location: Southern California
Posts: 24
I had the same problem one time. I turned the pump on while I was moving ~15-20mph and it filled it up. It has worked fine ever since.
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Old 05-20-2018, 10:44 PM
Mjg42001 Mjg42001 is offline
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Join Date: Apr 2018
Boat: Mastercraft nxt22 2016
Location: Southeast
Posts: 1
My starboard side ballast would not fill up today but would empty fine. Are y’all still having an issue or have you found a fix? I have an 16nxt22
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Old 05-20-2018, 11:06 PM
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hyman989 hyman989 is offline
MC Fanatic
Join Date: May 2016
Boat: 2015 Mastercraft NXT20
Location: pacific northwest
Posts: 579
The problem with nxt is it's not the same pump to fill and drain like the x series. I have asked my dealer if there was a easy way to swap them to the x series pumps and got told no. There is a drain pump and fill pump for each tank. Maybe air lock in the fill line? Maybe try to bleed the line and make sure the pump handle is up and open?

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Old 05-21-2018, 11:11 AM
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Kennyk69 Kennyk69 is offline
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Join Date: Mar 2017
Boat: 2009 Supra SSV24, 2017 NXT22
Location: Indiana
Posts: 91
My bow tank wouldn’t fill for me one time. I left the pump on and pounded some waves at 25 for a few minutes......that did it for me.
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