I have the same problem. My wife and I moved to a new house last year and a week ago our tub drain clogged. At first I tried to do the "GREEN" thing and snake the drain. When I opened the panel I found that the configuration of the pipes didn't allow me to open the clean-out plug so I snaked from the drain in the tub. The snake got stuck after repeated tries to get it to go down the main drain and upon pulling it out it broke. Then came the wonderful chemicals that also didn't work. We called a plumber finally after a couple days who snaked the drain and water flowed freely!... Until this week when the tub became reclogged and the plumber who was paid $250.00 will not come back out without another $250.00 because of the legal fine print on the back of the bill I signed. So does anyone have an answer for that???