How to fix mosaics (or tiles) in a swimming pool?
Apply weber. rep bac on the concrete substrate.
Leveling after bonding agent set, if the leveling layer exceed 10mm, multi-times application are needed, and weber. therm mesh is necessary.
Leave the leveling layer 5-7 days to set, then apply weber. dry slurry twice at least.
Apply weber. set mosaic or weber. set grip for tiling.
Grout the joints after finishing tiling (normally 24 hours)