Mastercraft Ballast Question!!

[shwapx15]

I just purchased a 2011 x15 and I am new to the whole ballast procedure so if someone could help me out that would be greatly appreciated!

When filling/emptying the ballast, it says the engine must be at 1500 rpm... can you be standing still (neutral with engine revving at 1500 rpm) or do you have to be moving?

Does the ballast tank empty and fill from the same hole on the bottom of the boat?

The owner’s manual says that a red light on top of ballast toggle switches should blink 6 times when tank is full… this doesn’t seem to be working... so should I watch the overflow hole on the side of the boat to see when tank is full?

Is there an automatic shut-off mechanism when emptying the ballast tanks?

Thanks alot!