I really need help. I have bought a house that was built in 1900. My brother-in-law cut a pipe that leads to the stink pipe. it is 3 1/2 inches of cast iron. it leads to the plumbing upstairs that he is going to replace. but now that he cut it. my toliets won't flush, my tube is full of poop and nothing drains at all it just stays or over flows everwhere. going to snake it to see if clogged . can anyone help me please would appreciate it. ps it worked fine before he cut the pipe.