Complex sentence: The Pool Gap consisted of two pools containing a total of 200,000 gallons of water connected by street style handrails that the wakeboarders slid along being towed by an overhead cable system.
Split into simpler sentences: The Pool Gap consists of two pools containing a total of 200,000 gallons of water. They are connected by street style handrails that the wakeboarders slide along being towed by an overhead cable system.