Learn something new every day!

Plumbing lesson. You know that curve in American pipes? I always figured it had something to do with pressure and how the waste is expelled and I might still be sorta right but what it for sure does is it allows free flowage (yes my word :P) of gas so sewage smells don't creep back in or just get stuck there.

Japanese pipes have no such bendiness. We woke up this morning to a smell that almost knocked us dead. 3 hours into the day and it has finally cleared up after a couple of flushes or maybe just after wishful thinking.