The most common reasons that would reduce water absorption include:
- Waterlogging (placed on a wet floor or inside a wet room)
- Insufficient airflow underneath (non-breathable surface or trapped water)
- Chemical exposure (bath oils, shampoos, cleaning products)
- Heavy, repeated splashing beyond the mat’s designed capacity
- Pores becoming filled after long-term use
If your mat simply has surface build-up, absorption can often be restored by lightly sanding the top with the included sandpaper.

