Hi guys,I have a rental that I just found out that I've had a leak for I guess along time.Any way,I had a plumber come out and give me a estimite and what's the problem.Oh,by the way this is a 30 yr. old house with a fiberglass shower stall.Found out by a plumber that it's the flange underneath the shower that's suposedly broken and this is a concrete foundation.He said that I would have to tear the complete shower out and replace everything!I talked to a plumber at work and he said that's B.S.and the only thing that could be wrong is the flange is cracked or the plumbers putty is shot.He said you just remove the flange with a special tool(ethier a cross tool or a inside gripper type)and replace the flange!that's it there can't be anything wrong with the pipe into the concrete.Can anybody conferm this?

Here is a real challenge, I need help with. I have a 75 year old bath tub trap, which developed a leak when the 1 & 1/2" tailpiece pipe corroded thru at the threads, which of course dumped water through the plaster ceiling in my living room. The basic configuration is bathtub drain has a 90 elbow which goes into the vertical pipe coming down from the bathtub overflow. The bottom of this pipe has an inch and a half tailpiece (2 and 1/4 inches high), which threads into an old brass trap which includes a cleanout basket about 4" in diameter and 6" high (which has a flat removable top). From here, it is connected to a 2" lead pipe, which ties into the toilet drain about 4 feet away. Problem: I have removed the vertical overflow pipe, the corroded tailpiece, and all of the remnants of the corroded tailpiece threads which were in the old brass trap. However, I have tried to screw 4 different tailpieces into the old trap, and they will only go in about 1 full turn, which with these fine threads is less than 1/16th inch. What I've tried: I have cleaned the threads with a stainless steel wire brush and totally chased them with a dental pick. I have heated the thread area with a torch, and repeated the wire brush/dental pick routine. I cut slots in one of the new tailpieces, to try to make a "thread-chase", but it will not screw in any further. I have tried lubricating the threads and also tried one wrap of teflon tape on the tailpiece, but this does not help either. I have examined the threads with a flashlight and mirror, and can see no contamination or trash in the threads. The trap is definitely inch and a half, not inch and three eighths, which was sometimes used years ago. The old trap/clean-out basket are sitting right against one of the old floor joists, so it cannot be removed without cutting out the floor joist, which would require removing a significant part of the living room plaster ceiling, and oh-by-the-way, the bathroom has a ceramic tile floor layed over a concrete slab, another major obstacle! Does anyone have any ideas that I have not tried? I cannot find anyone that knows if they make a thread-chase tool to fit the inch and a half fine threads, let alone where to find one.