I bought a Bigfoot
trailer a few weeks ago and have been busy replacing all the plumbing lines. I installed a new grey water tank and replaced all the 1.5" lines under the trailer but I have discovered that the 3" black water pipe and elbow has a hair line split on the bottom. Question is has anyone replaced their 3" pipe and if so is it threaded into the bottom of the black water tank? Can I cut the elbow and thread out the joint from under the trailer easily without having to remove the toilet and tank from above?
The previous owner apparently drove away with the sewer discharge still attached and tore everything apart under the trailer. I was really hoping the 3" pipes were sound as they looked fine but now they gotta go.
I was thinking about trying to patch the split with ABS glue on the inside and outside and a couple hose clamps but I would rater replace if I don't have to remove the toilet and tank. Unfortunately in order to thread out the pipe I would have to cut the pipe at the elbow to get past the frame when turning... means there would be no turning back.
Any advice from previous plumbers would be appreciated!