horse arena management systems sold as a kit, comprised primarily of electrical controls for controlling horse arena drainage and irrigation systems, for receiving Internet-based weather feeds and adjusting horse arena drainage and irrigation in response, for controlling horse arena misting systems, for controlling horse arena lighting systems, for controlling horse arena audio systems, for reporting on horse arena water and energy use, and for providing error codes both at the electrical controls and communicated through an Internet connection in response to detecting errors in drainage, irrigation, misting, lighting, and/or audio components of a horse arena, the kit also including sensors for determining water level or water content of a horse arena, additive to be mixed with sand for use as equestrian footing in horse arenas, pumps for use in horse arena drainage and irrigation systems, water valves for use in horse arena drainage and irrigation systems, misting systems for horse arenas, lighting installations for horse arenas, horse arena audio systems including audio speakers and audio wiring, plastic conduit for horse arena drainage and irrigation systems, perforated polymer mats for separating sand and/or footing layers in horse arenas, and polymer liners laid over native soil as a base for horse arenas; downloadable mobile application for allowing users to control and monitor watering and drainage of horse arenas, energy use of horse arenas, misting systems of horse arenas, lighting systems of horse arenas, audio systems of horse arenas, and for allowing users to view error codes corresponding with detected errors in drainage, irrigation, misting, lighting and/or audio components of horse arenas

providing a website allowing users to control and monitor watering and drainage of horse arenas, energy use of horse arenas, misting systems of horse arenas, lighting systems of horse arenas, audio systems of horse arenas, and for allowing users to view error codes corresponding with detected errors in drainage, irrigation, misting, lighting and/or audio components of horse arenas