I used a multitute of methods
1. Pulling the loose tile off - this will be easy
2. Using a scraper - this will be easy
3. Using a scraper and a hammer - still fairly easy
4. Using a bolster and lump hammer - now it's hard
5. Using a chisel action drill - ah it's easy again :yes:
Then removing what seemed like 100's of rubble sacks downstairs to car - hard work.
trying not to keep getting the same chap at the tip
and the sad part, surveying what was left of the walls.
All done in the end - but don't underestimate the time and disruption of removing tiles from a wall!
Factor it in on a quote and stress the work involved to the customer.
Lesson learnt
frogeye