You sure talking about my house. I had baaaad problems, the upstairs bathroom pipes unplugged and my dining room ceiling came a comin down. Can you say suewee! A plumber friend of mine did the same as your plumbers. Here's the stickler sometimes the pipes would drain well sometimes not. Big...
I've always buyed a eureka, it is very easy to service yourself. You could take the whole machine apart and pit it back together without any screws left over.
Hey, I had the same problem. I had to take out the damned dishwasher and check the hoses for back flow gunk. Luckily my dishwasher hose was a clear dirty yellow. There was black patches inside the house which was the back flow of sludge. Before I disconnected the hose, I made sure the sink...