This 3 disc set was filmed in partnership with USPTA on the HydroCourt at the USPTA World Headquarters in Houston, Texas. The DVD covers topics from "What is Har-Tru?", to the latest in sub-surface irrigation, to daily, weekly and annual maintenance procedures. The DVD set includes live footage of most topdressing procedures and step by step instructions from power point presentation on how to conduct them. The new digital format offers a significant advantage over the old maintenance video in that is allows viewers to skip around quickly and easily to the topics they are most interested in. Perfect as training or a refresher course for maintenance personnel, this DVD is a must for all facilities with Har-Tru courts. Courtmaster Tennis Equipment 149-3459