I have an in ground gunite pool and live in a freeze/thaw area. A few years ago I repalced the coping stones, tiles and decking. I used thin set polmer modifed mortor to set the coping stones which were large rough tumble stone pavers. I left about 1/2 inch space between the coping stones. I was told I should use the the same tile grout between the coping stones as I used for the pool tiles. I did this for about 1/3 of the stones than ran out of time and left it for about two years (other projects came up) Well it doesn't look that great and I noticed many of coping grout joints are cracking. I want to finish off the remaining coping joints and re-do the one's I started.

Any advice what I can or should use? Any tips on how to? I'm a DIYer, and can tackle any job with good direction.

I aslo used the same tile grout where the tile line meets the coping. Its giving way and falling into the pool in pieces. The space is about 1/2 inch aswell. The grout is a pale dirty white. Any suggestions what to use here?

Thanks,

Les