Last week I moved into a house I bought. I hooked up the washing machine to the utility sink. As the washing machine was draining I noticed leaking from the sink. It was coming from the overflow valve (as indicated by the black arrow in the attached picture). I originally thought the drain was blocked, so I checked the trap for blockages and checked the vertical drain pipe by placing a house down there and turning it on. The water flowed freely down the drain. Therefore I think it may be a issue with the plumbing from the sink to the drain. I am concerned with the u-bend (as indicated by the red arrow in the attached picture). Does it look right? I'm not sure how the water is meant to travel through this section of the pipe. Any thoughts or suggestions on what to do?[ATTACH]50190[/ATTACH]

Hey all, this is not a DIY project (for me anyway) but I did want to throw it out there to you guys that are way smarter than me about this kind of stuff so I can make sure I manage the project correctly. House is built in 1963 and has what looks to be cast iron pipe. We bought the house in November and started having backup problems in the basement bathroom and outside drain (which is connected to sanitary sewer) in February. After a couple of snakings that only solved the problem for a couple of days at a time, we had it hydrojetted and the guy ran the camera through: [URL="https://youtu.be/ug0JzE-zEJU"]Video 1 - February[/URL] [URL="https://youtu.be/0arxjTQtOJs"]Video 2 - April[/URL] As you can see at the 35 feet mark in the first video, the drain is partially collapsed. Signal locator showed it is right under the foundation wall. Got a quote to fix it from the inside (busting up concrete in the basement) that was for either $2,500 or $3,500 (the guy had a very thick accent) but regardless it wasn't in the budget at the time to fix, so we rolled the dice to see if a good cleaning after 50+ years of grease and hair would solve the problem. 2 months later, last week, we had the same problem so it is time to address it. My questions are: 1. Are my options to repair it from inside or outside? Outside repair would require about 4.5 - 5 feet of digging since the basement is below grade, but it is my preferred option since that half of my basement is a converted studio and is rented right now so I would prefer not to disturb his life (and my reviews/rental business). I also don't have any hardscaping or landscaping that would be disturbed from an outside dig except for a mulch bed and some dead bushes/flowers that need to get removed anyway. 2. Any huge benefit of one over the other as far as the repair itself goes? 3. Should I go ahead and have the pipe replaced from the foundation out to the city tie-in while I am at it due to age, or can this be explained from the house settling on top of it? 4. Is a sewer main warranty an option here? They have a 30 day seasoning period and I should be good for that since I was for the past 60 days between jettings but would need to look into their view on pre-existing conditions and if the foundation wall is considered "inside" (which isn't covered) our "outside" (which is). Really appreciate your thoughts and advice.