What is the purpose of applying a thin layer of water after scraping the ice?

Applying a thin layer of water after scraping the ice is primarily done to fill in scratches and create a smooth surface for skating. When the ice is scraped, small imperfections and scratches are left behind, which can affect the quality of the skating surface. The water that is applied in a thin layer flows into these minor imperfections and, when frozen, solidifies to create a more uniform and smooth surface. This is essential for providing optimal conditions for skaters, enhancing their experience by reducing friction and improving glide on the ice.

Additionally, a smooth ice surface is crucial for safety reasons, as it minimizes the risk of falls and injuries. By ensuring that the ice is well-maintained with a fresh layer of water and subsequently frozen, the quality of the skating experience is significantly enhanced.