An example: the firekit or bedroll in NoM refuse to work telling you that you're under water when there's no water around? This will fix it!
Not only NoM, but many other mods will benefit from this fix.
A big thank you to john.moonsugar for his tes3cmd. Without it I would have edited interior cells by hand for the next two or three months...
http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=8675
Warning 1: It seems that the CS resets the water level to 0 when an interior cell is modified in any way! This means that this fix must be loaded after mods modifying interior cells or these cells will not benefit from it. To be sure, load it as last...
Warning 2: Absolutely don't clean this fix with TESTool or it won't work.