[TOMT][BOOK] potential sci-fi book about about a man and his travels through water(not a boat)

I read this book in 2008/2009. It was passed around through a group of friends that I don’t have contact with anymore(and quite frankly I don’t actually remember which people read it). I never finished the book, because I had to pass it to the next person. I don’t remember the cover, but I do remember that it was paperback.

I believe that it was sci fi and it was about a man who had work to do but was constantly taken away from it by water. He either traveled through water(in a portal-y sci fi kind of way, not a boat) or water just took him away. One scene I remember is that he was in a hotel room, and the room started slowly filling up completely with water. I believe he traveled around with a briefcase, though that could just be how I pictured him. I think he also had a dog. The dog may have died. Sorry. I believe there was another scene where he was in a parking lot and the water was lapping near him.

There’s a big chance that this book wasn’t actually sci fi and it was just a kafkaesque metaphor on death or something.

That’s all I can remember about the book, just that I think that he traveled through the water and that he was also trying to avoid the water.