I just have to say - we had a baby washcloth down our tub drain, and after snaking for HOURS - i broke down and spent $25 on a co2 drain opener - it is THE BOMB! one blast would have done it, but the duct tape they recommend for sealing the overflow is not adequate - i stuffed a washcloth into the overflow and screwed the cap back on to secure it - used 2 discs in the blaster and one blow pushed the washcloth out to the cleanout. save yourself hours of grief and try this if the cloth has gone beyond the trap - i have an old victorian, with an "S" trap, a 45 and about 1 ft to another 45 to a 15 ft. straightaway to the main cleanout/sewage drain - if you have less curvature in your pipes and less distance, you should only use 1 disc.