is the bathroom on the oposide of the kitchen ? in my house it is this way. The Kitchen drains into the same flow as the bathroom as in anyhouse though, just depends on positioning. I am going to assume your on city sewage and not septic, if it was a septic issue your toilet would also be backing up if it isnt already. In the average house you will have 1 4" pipe that eveything will merge into. The toilet will be on a 4" converted down as you go because it has the largest volume of water at any time, 2 gallon flushes at once can make a nasty mees
Depending on how old your house is, most pipes will be a 2", your bathroom sink and kitchen sink kwill be on a 1.5-2" as well. It isnt a trap issue but sounds like maybe you got a wash cloth down the drain in the bath tub which will be more then likely in the trap. As was mentioend above try a snake, if you do not feel comfortable with this, get a plumber, going rate now a days is probably around 50$ an hour or more. Good luck Larry
also, just an fyi, all those pipes you see on the top of your house, those are breathers for your plumbing, every sink, bathroom, kitchen exhaust etc run's to these. So if you have a small bug problem, like fruit flies that appear out of nowhere, or rodents even or the bad smell that you just cannot find in the house, these can be the cause of it. I put a bit of window screening around mine and duct taped them to the pipe, always make sure these pipes are unobscured for proper ventilation, it will and can save your life.
[ 05-06-2004, 09:27 AM: Message edited by: Elif Godson ]