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Hello,
I have a very small job to replace three tiles in our shower. Instead of buying a big tub of adhesive and a big bag of grout, I was wondering if I could use one of the adhesive/grout premixes, such as this:
http://www.acehardware.com/product/index.jsp?productId=3214756&cagpspn=pla
These tiles are on the platform at the end of the tub, where we keep shampoo and the kids' toys, etc. So it's not getting direct water, but it could get wet occasionally. Hopefully the picture helps.
Think it's appropriate for the job?

 

[paintdrying]

I used something similar to that. Make sure to really mix it well. I was very happy with it because I was done in an hour, no return trip to grout