Water Use and Techniques for Riding Arenas - Horseman's News
Watering the footing material reduces dust levels and can put some stability back into loose, sandy, or wood-based footing. Frequent, deep watering will be part of normal arena maintenance, so planning ahead to make it a less arduous task will have long-term benefits. The objective is to keep the material moist all the way through and to have uniform water application over the surface. When an arena is not kept uniformly moist, the loose, dry areas are less stable than the well-watered spots so that horses lose confidence in what kind of conditions will be underfoot as they travel between slippery and suitable conditions.