I have a stone (granite head size + -) and cement retaining wall (maybe 40 years old) that has huge (4 to 6") cracks on one corner due to pine tree roots. I'm going to demolish the corner and re-build. I assume I have to go stone by stone. What type of tool which I'll rent would be best for that? And how to go about it.
2nd question: In rebuilding the wall can I use the old stone? thanks