Water isnt draining before and after replacing pipes
Hi all,
My bathroom hasn't been draining for a few weeks and I figured maybe I just needed new piping, so I dismantled all the old stuff and installed all new piping (shown in picture) thr water still will not drain. I have checked the copper pipe (white pipe leading into wall) and its clear of debris and i can see all the way to the main line) i have also disconnected the ABS pipe from the coupling and ran thr water and water is flowing through all the way to where I disconnected so there is definitely no clogging up to that point either. I took the plug out a long while ago and draining was working up until a couple weeks ago.
I am at a complete loss as to why the water wont drain and was hoping for some advice or ideas. Also not sure if relevant but every other sink in the house is draining fine (this one is on a lower floor than all the rest) Thanks in advance for any information!