Here is a pic of my 2001 MasterCraft Maristar 210VRS, (MasterCraft X-10) Rear Ballast Tank. I have added dimensions and pump information to the pic so that others can use as a reference. Hope this information helps others...
You can also get a higher quality photo here...
http://wakeboardnj.com/projects/tank...Dimensions.jpg Or a PDF version here...
http://wakeboardnj.com/projects/tank...Dimensions.pdf KG