1.5"

I’m currently considering how best to do the pipework from the shower trap (90mm, 1.5”) and I just wanted some input from you guys and which is the best option, as shown in the attached photos? Never done this kind of thing before and I am a little bit concerned that my pipework may not be able...

Hey guys My wife noticed water on the floor in our basement. What I can see is that the elbow is cracked where a 1.5" down pipe enters a 4" pipe that goes beneath the basement concrete floor. My thought is that I have to break up some concrete to replace the 4" pipe/clean out and reattached...