This is the part that worries me the most... If the brown water was from an outgoing pipe, there would be no compensation that could possibly be enough. Maybe you just don't want to know.

Replace/repair/clean your stuff. Night comped. 40k Marriott Rewards points. All of that is contingent on it NOT being an outgoing pipe. If it is an outgoing pipe, replacement of everything, free night, a paid medical check-up and 100k Marriott Rewards points.

And count me among those that does not always unpack. I pull out what needs to be hung in the closet, but leave everything else in the suitcase, which is on the rack. I pack a gallon Ziploc for each day plus one extra. Each day, a bag comes out of the suitcase, the clean clothes come out of the Ziploc, dirty clothes go in and the Ziploc goes back in the suitcase. There are one or two Ziplocs for miscellaneous stuff. There is a piece of dryer sheet in each bag, too. The bags last for months. It saves space and protects my clothes if the suitcase gets wet while traveling. Now I realize it serves another purpose; much of my stuff would have been okay if the pipe broke in my room.

I've been flooded before; my brand new condo, circa 1996, had faulty sprinklers. All my ties were ruined, my winter coat ultimately could not be cleaned and several pairs of shoes. (Donald J Pliners, since we seem to be comparing shoes. The most comfortable shoes money can buy.) It's a pain, and it's not your fault.