18 ft. Big Splash Waterslide

🌊 18' Big Splash Commercial Inflatable Water Slide with Pool (Wet)

Make a massive splash at your next summer celebration with the 18' Big Splash Water Slide—our largest, most thrilling water slide rental! Measuring an impressive 35' L × 15' W × 18' H, this commercial powerhouse is the ultimate summer centerpiece for backyard birthday parties, neighborhood block parties, summer camps, school celebrations, and church youth festivals across Knoxville, Powell, Clinton, Maryville, and surrounding East Tennessee areas.

Riders climb the secure, non-slip stairway with heavy-duty grab handles, pass under the safety 'no-jump' netting at the top platform, and race down the steep, slick sliding lane straight into an attached, refreshing splash pool! It delivers high-speed thrills that keep kids, teens, and even brave parents lining up all afternoon.

Planning an indoor or cooler-weather event? Check out our 18 ft Accelerator Dry Slide for all the same towering speed without the water!

📋 Unit Specifications & Setup Requirements:

• Slide Dimensions: 35'L × 15'W × 18'H
• Required Setup Area: Minimum 42'L × 20'W on flat, level grass, turf, or smooth concrete with at least 19' of clean overhead clearance
• Power & Water Needs: Dedicated standard 15-amp electrical outlet within 50–100 ft and a customer-supplied outdoor water spigot hookup
• Rider Capacity: 1 active slider at a time (quick throughput keeps large party lines moving effortlessly)
• Safety Features: Enclosed 'no-jump' top netting, non-slip stair treads, commercial-grade vinyl, and deep splash pool landing
• Cleanliness Guarantee: Thoroughly washed, sanitized with Simple Green, and inspected before every setup

*Note: Vinyl accent colors may vary slightly based on availability.

🌙 Want to extend the fun? Select our $50 Overnight Upgrade at checkout so the kids and teens can keep splashing until morning pickup!

📲 Book online in minutes with just a $50 deposit, or call/text us directly at 865-407-0111 for multi-unit packages, summer camps, or church event planning.