First time wall tiling and having adhesion issues. Installed 4x10 subway with 1/4x3/8 trowel and all set. When I knocked off spin doctors several times popped off. I'm thinking I didn't compress
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Lovdeco Glass Subway Tile, 4 x 12 Inch, 4 Sq Ft, White Glass for Bathroom Kitchen Backsplash Wall, 12-Pack - Amazon.com