Yes it does sound as if you have a clog. You need to call out a plumber to auger out your drain. Some people try to do this on their own, but soon find that their auger is either too short, the cable is too small or a combination of the two. Since the laundry room is on the upper floor and the first floor shower and toilet are backing up, the clog is further down the line than the first floor fixtures.
» This message has been edited by CincinnatiPlumbing on 22 March 2005