Re-stretch or replace
| Symptom | Likely cause | Typical remedy |
|---|---|---|
| Soft ripples across most of the room | Lost tension, gripper still sound | Power-stretch and re-fix |
| Sharp permanent crease at ripple line | Backing cracked from repeated folding | Replace affected carpet, re-stretching won't hold |
| Ripples worst near one wall only | Gripper come away from subfloor at that edge | Re-fix gripper, then power-stretch |
| Ripples returning after previous re-stretch | Underlay collapsed underneath | Lift carpet, replace underlay, re-stretch |



