Hi have recently had a new en-suite fitted , new tiles etc.
Everything is fine but I have a small crack in the grout right in the corner of the shower tray where the tiles meet the tray on the vertical. No other cracks have appeared. The floor is chipboard and then 6mm tile backer was placed to strengthen and reduce flexing. The tray was fixed using tile adhesive so I cant understand why it is cracking in just that one place?
Is the crack likely to let water through and if so, chall I just runa bead of silicone in the corner to prevent any leaking? Any advice appreciated.