The infill acts as a wearing course, protecting the fibre and making it stand up. If you can see that the carpet pile has begun to fold over and there is very little infill visible, you may be running the risk of your pitch wearing prematurely. In this case you should seek immediate advice from your pitch installer or ourselves so action can be taken to rectify the situation. Technical Surfaces offers a Granular Top-Up service to help complement your maintenance programme. It is imperative that before new infill is applied the carpet pile is worked upright to prevent the pile from simply being sandwiched between the new material.