ceramic tile installation?

[Darlene]

I have installed ceramic tile in my shower and it turned out beautifully. Beneath it I put in the backerboard and then applied a coat of Ceramic Adhesive (that I purchased from Lowe's) with the tiles on top and then mixed my own mortar with a sealer completing the job. Next we decided to tile our bathroom floor and same thing....and it turned out great....no problems what so ever. Now for my problem....we decided to do the same in our Laundryroom and kitchen floors....with only one difference and it is the brand of Ceramic Adhesive called Acrypro from Home Depot. Since we have been using this Acrypro Ceramic Adhesive...the tiles don't seem to adhere to the ceramic adhesive/floor. It is the same install with backerboard, tiles, etc....only thing different is the adhesive. I am so disappointed as I have tried to remove it, clean it up again and re-install and still seem to have problems. The only thing that seems to help some is by putting heavy weight on the tiles, but it is hard to do for all. I am wondering if it is just the brand that is causing me so many problems. This is the second pail we bougt at $30.+ a pail. I am prepared to return the last pail to Home Depot and go back to Lowe's to finish the job....correctly! Has anyone else experienced this type of problem and what did you do to resolve it? Any suggestions would be helpful (for this project and future projects). Thanks!