Outside floor tiles - Grouting advice

[Dan]

OK - Update:
The patio tiles were loose, what's more they were definitely cemented in. They all lifted without any difficulty as they were not stuck.
Had a massive job filling all the 3-5 cm deep hollows in the cement matrix (we used outdoor leveller + sharp sand as we needed it to set quickly in this colder weather).
Then re-laid the tiles.
It took two of us 6 days (I used a tiler I know and paid day rate, so I had expert help). Total job cost me 6 days of my time plus nearly £2k for labour and materials!
Ouch!
The job is done, and I am grateful for the advice given on this thread as it means it is done properly.

Thanks for the update matey. We rarely hear about them once we've sorted them out. So thanks for that.

Any pictures of it done?

 

[NOTTNICK]

Photos as requested. A wide grout gap, but that's what the original builder did.

 

[Dan]

Photos as requested. A wide grout gap, but that's what the original builder did.

Very posh. I think those look spot on.