Mastic Grout for pool tile?

[ctrl+alt+del]

I have a few small tiles that have come off the top of the wall separating my spa from the pool. Is there a special type of mastic & grout I need to put them back in place? Thanks in advance!

c+a+d

 

[LH-Pools]

You can use 1 of 2 things. You can set the tile with a thinset or with a good silicone. After tile has set you want to use a sanded grout to finish the job. You can get these items at Home Depot. When setting the tile clean out the area the tile will be going back in at. You can use a hammer and chisel for this.

 

[Tripdaddy]

Don't use mastic. When it gets wet, it basically turns back to a liquid. I am 'guessing' that it might get wet in a pool. Just a hunch. Use thinset (the kind you have to mix yourself).

 

[Dead Horse]

don't get the cheap stuff. Get the stuff with the acryllic additive.