So the water ran full blast in the bathroom for about 4 hours.
short version: what can I expect? Anyone that has done this / fixed this and pointing and laughing all allowed. ;)
(most of the water went through the vent, I have the crawlspace open and a fan blowing in, slowly drying the wood out but two days passed and you can still see heavy wet spots under the house looking up, the inside of the house 'seems' dry already)
only one room was affected from the top down view, all the water fell through the vent when it tried to get past a certain point