Do you butter back of tiles

[charlie1]

...Towel size... 600 x 300 then no less than 10mm square notch but probably use a 12mm

 

[Diamond Pool Finishers]

[video=youtube;Yb0o890Ki04]http://www.youtube.com/watch?v=Yb0o890Ki04[/video] take a look at this we back butter all tiles !! just seconds before fixing