I have a vinyl liner about 5 years old coping is cracking in different areas. Should I remove loose concrete and repatch ?? What type of concrete do I use??
from the pictures it looks like this was already "patched" and the pictures are what happens when this type of patch is used... did it take 1 or 2 years to look like this?
That cracking is terrible. I've had a lot of concrete work done in the past, mostly sidewalks. It appears they used a hot load of concrete to pour your decking. It will deteriorate more in a very short time.
I wouldn't pay and would insist on it getting it completely ripped out and replaced.