question of snaking a T intersection
I recently bought a new house.
There are two bathrooms next to each other on the second floor. Both sinks connect
into a T inside the wall.
I had a backup and tried snaking it hoping to get it. I've only succeeded in having the snake come up through the other sinks drain. The blockage appears to be in the section that T's off from the sinks.
Short of taking one sink apart and ripping the wall is there a trick in getting the snake to make the turn in the T?
The snake is one of those that I can hook up to my drill and have it spin and feed.
I've tried the fast and furious approach as well as the slow. I've bent the tip to see if I could
catch it in the T but so far no joy.
It looks like the T goes horizontally to the outside wall and then down to the main drain somewhere.
I've looked into going into the basement and maybe trying to go backwards, but I can't seem to find
the pipe coming down not sure if it ties in somewhere in the wall with another T or 45.
Would appreciate any pointers.