I had a problem a few months ago, apparently the drain pipe that goes to the city sewage was clogged by fucking tampons, and after a heavy rains I got backed up in my basement up to like 8-10" in over 1000 sq feet of space. We had to get a couple sump pumps going and flushed the sewage out into the streets LOL. Thing is, in that neighborhood, it was in a valley and they had hella drainage problems, there was a class action suit agains the city of Seattle that people initiated because there was inadequate drainage systems. One lady died there a couple years ago because she was in her basement and she got locked in and the water rose so high she drowned. But fuck it, I moved and then the landlord tried to charge me with a bunch of bullchit, claiming it was my fault it got clogged.