I have come in to finish a job that has sat for close to two years. All the plumbing and electric was updated and passed a rough inspection. I had a plumber set a toilet so we could work in the house and when we flush the toilet which is in the back east side of the house on the second floor, the shower in the downstairs bathroom on west side of the house fills up. Fortunately for the HO the shower pan was installed a few days earlier. The plumber is coming tomorrow morning to try to figure out what the problem is. Just thought yall would get a laugh out of that.