I have a drain pipe for a washing machine that is clogged. We have tried using a garden hose with a bladder that causes it to shoot high powered water down the pipe but to no avail. Also we tried the sulferic acid concentrate with no luck. Right now we have the drain hose just hanging inside the drain pipe. Does there need to be a secure connection between the hose and the pipe? Also does anyone have any suggestions on how to fix this easily? It is just a clog so I hope I can get away without calling a plumber.