The 18ft. Double Lane Tsunami Waterslideis 18ft. of pure excitement. Rides climb up the left side and slide down on the right. The slide has added safety features of a covering at the top ensuring the the riders cannot standup while on the top of the slide. Tsunami is perferct for birthday parties or large events. You will need a water outlet within 100 feet from the slide in order to fill up the slide pool. The Tsunami requires a regular household outlet for power. Each inflatable unit requires a dedicated 20amp household outlet for power. FUN SOURCE IS NOT RESPONSIBLE FOR POWER NEEDS. We do rent generators should power be needed for your event.