Why is a rock pad placed under a skimmer?

Placing a rock pad under a skimmer is primarily to prevent the skimmer from becoming stuck in sediment. When a skimmer is used on a construction site or a sediment control area, sediment can accumulate beneath it, especially during heavy rain or when water levels fluctuate. This buildup can make it difficult for the skimmer to function properly, potentially leading to failures in sediment control.

A rock pad provides a stable base, reducing the likelihood of the skimmer sinking into the softer sediment. This stability is crucial for ensuring that the skimmer continuously and effectively removes water while allowing sediment to settle properly. Maintaining the skimmer's operational effectiveness is key to effective erosion and sediment control practices, making the rock pad an important feature for functionality rather than aesthetics or noise reduction.