Decent solution if you can choose the size of the brew regardless of what’s in the tank.
I have a different model Ninja and like many coffee makers out there, it will use all the water in the tank when you press brew. This solution would only work if I changed coffee makers.
Even dropping the float lower wouldn’t help as this solution will refill the tank as fast as it’s used. Basically, a 100% guarantee of a giant unending mess every time you press “brew”. LOL.