mortar in shower pipe
 

how do you get mortar out of shower drain in the u turn

Oh come on someone answer him.. If I do it Scuba dave will just delete my post.

Make it one of those "good news / bad news" things...
Ok, Bad news 1st:
you need to replace the pipe

Good news:
you'll have a new pipe

how much mortar is in the pipe? How did it get in there? How long has it been there?

Replace the trap
 

Hopefully you can get to it from an access Panel or from a Ceiling below that can be easily patched. This is the Easiest and most economical. Renting a Snake may work but could put a hole in the pipe... I have also seen one Contractor who did not want to pay us to repair the problem he caused have one of his helpers sit there for a few hours with a log bar and slowly chip it all out. after he broke up all he could see we ran a camera for him and luckily it was all clear... good Luck