1.    Slow / clogged drains  — clean drain grates; use baking soda; call a plumber if needed. 2.    Standing water  — remove tiles & re-slope floor to the drain. 3.    Slippery floors  — use anti-slip tiles (R10–R11) or temporary anti-slip mats. 4.    Persistent odors  — add ventilation/fan; install P-Trap or odor-proof drain covers. 5.    Worn grout  — remove old grout, dry well, re-grout. 6.    Loose tiles  — remove, clean, and re-bond with proper adhesive (not just spot fi