How should we clean the PVC shower walls in bathrooms
always dry off or Squeegee after use
washed down regularly (weekly ideally).
To wash use soap & water or mild detergent. A regular wash down with a commercial, non abrasive bathroom cleaner should be OK depending on how much the shower is in use. Make sure you rinse the surface after cleaning.
DO NOT USE abrasive cleaner, nor a rough edge scourer / sponge