Rushing water sound in the walls....or am I going crazy?

There's a rushing water sound that comes on and off in the back room of my apartment -- far away from the bathroom and the kitchen -- it's pretty loud / noticeable at night. We have baseboard electric heating so I can't imagine the connection there. Others in the building say it's even worse in their apts -- but no water damage or frogs or anything coming through the walls, and no concern or action from the landlord so far as I know.

if you apartment bldg has a flat roof, it could have a rain drain that goes down the center of the building.

Snow melts, becomes water... finds drain all at once?

...just a theory.

Just rats in your toilet

http://gothamist.com/2011/01/28/rat_emerges_from_toilet_to_terrify.php

I just had the same thing. It sounded like there was a waterfall behind the wall! The upstairs neighbors did something, I know not what, and now it is gone.

Good luck!

Man I hope your pipes not busted inside the walls.

My guess is that it is the heat. Depending on the system it can just be water flowing through the heating pipes inside the wall as the heat clicks on and off. Baseboard heat tends to be forced water sos that would make sense. If there was a pipe busted in the wall the water would flow continuously until someone shut it off. You would also have water somewhere in one of the apartments.

My baseboard heat sounds very much like rushing water. What is strange is that I don't recall it making that noise at all last year, but I also didn't run the heat nearly as much then.