I had a hard tank on my 2012 X25 fail and had to haul the boat home with the starboard rear ballast tank full.
I snaked a 1/4" tubing fromthe overflow port and into the tank and syphoned the water out. It seemed to take forever, but it worked.
Current: 2009 X-Star, Indmar 6L, 400hp, ZFT3 tower. c/w 1/9 scale R/C PWT X-Star
2009 Moomba LSV
2009 Moomba Outback V
2008 Monterey FS180
Pelican 4 set paddle boat
plastic tug boat when I was 4