$109.95
$19.40 delivery: Nov 22 - 29
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Wahii Waterslide 50' - World's Biggest Backyard Lawn Water Slide

4.1 out of 5 stars 503 ratings

Price: $109.95

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  • The #1 selling giant water slide in America since 2009!
  • 50ft long x 10ft wide! Kids love it.
  • Perfect for birthday parties, block parties, summer camps and church festivals.
  • The Wahii is constructed of thick specially formulated plastic. Surface is extremely smooth and is rated to hold 256lbs per square foot.
  • U.S. Patent # 8,419,557 (Made in the USA)

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Frequently bought together

  • Wahii Waterslide 50' - World's Biggest Backyard Lawn Water Slide
  • +
  • Gorilla 6009002 Weather Tape, 1-Pack, Black
  • +
  • BACKYARD BLAST Soaker Sprinkler - Wire Inserts in Each Tube to Direct Water Stream
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Product Description

The #1 SELLING GIANT BACKYARD WATER SLIDE SINCE 2009!

Wahii waterslide

WAHII 75 AND WAHII 50

The OFFICIAL Wahii WaterSlide is the biggest backyard water slide in the world. Manufactured in the Michigan (USA), the slide is constructed of thick, specially formulated plastic. The surface is extremely smooth and rated to hold 256lbs per square foot. It's tough and durable so it will last for years. The Wahii has a U.S. Patented fastening system that holds the slide to the grass. U.S. Patent # 8,419,557

Since 2009, thousands of Wahii slides have been sold around the world. Kids have enjoyed them in all 50 States in the USA, plus, Australia, Canada, France, New Zealand, Germany, Italy, St. Croix, Mexico, Finland, Poland, Netherlands, Denmark, Spain, Ireland, Austria, Russia, Iceland, Belgium, Greece, Croatia, Japan, England, Brazil, Portugal, Sweden, Norway, Switzerland!​ (and many more)

wahii hose position

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
503 global ratings

Top reviews from the United States

Reviewed in the United States on August 2, 2018
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3.0 out of 5 stars Works great, total pain in the butt
By C. Lund on August 2, 2018
So the good news is, the kids love it. It’s huge and even though we have a completely flat yard, the kids can slide all the way to the end of it. The ridiculous part that no one seems to have mentioned, though, is that in order to make the slide usable, you have to measure out 16” of duct tape for these white tabs that allow you to place the stakes through them. There are 15 stakes you’ve got to do this for. Once you get them all placed without getting the two sides of duct tape to stick together before you’ve gotten them on the slide- you read the fine print that says the material the slide is made out of will cause the duct tape to release. So you’ll have to repeat the duct tape business pretty much every time you use the slide. I mean, not the end of the world, but for the steep price they’re asking for this thing?? Couldn’t they have incorporated some tabs into the slide for the stakes to be placed into?? Seriously?? As is, you’re pretty much buying a giant tarp. Just so you know. ;)
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Reviewed in the United States on August 8, 2016
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5.0 out of 5 stars Great toy! Friends and family loved it!
By asia levingston on August 8, 2016
Such a fun toy! I attached some pre-party photos on account we didn't take any during because of all the fun we were having!

Giant piece of plastic/tarp- Now I read some of the reviews and people say this is a huge piece of plastic or a giant tarp. That's not the case. I understand what it looks like but the material it's made out of is almost the same of a floatie or interior lining of a pool. If it were a tarp -it would be rough to the skin and not so slippery. It's very slippery when wet but add some tear-free baby shampoo and things get a little more interesting!

When to use- I purchased this 50 foot slide for an adult "slip and flip" relay party we had last year. A combination of slip and slide followed by a small game of flip cup in order for your team mate to go next. We threw this party last year and our friends begged us to throw another one; so one year and a month later here we are about to have one this Saturday!

Set up- My boyfriend and I opened the slide up and placed it to our liking. Once we had it laid out we use the anchors and tabs that came with the slide. I used Yellow duct tape to attach the tabs to the slide. Once we did that we then anchored into to the designated holes. (Don't pull the slide too tight while anchoring. Leave a little room for leeway.) It takes some patience to get it right. We didn't have an issue at all once it was completely anchored.

How to use- Now my yard is flat so with this relay we all had to do a head start run before sliding. That's not Wahii Waterslide's fault that I was cursed with a flat yard but a hill would make things more fun for sure! We put a sprinkler in the middle of the slide for about 10 minutes to get it wet. We added baby shampoo before every relay. We placed the sprinkler at the beginning of the slide in the middle to separate the teams.

Ruin the yard- We used our slide for about 5-6 hours on a scorching hot day and picked the slide up the very next morning instead of leaving it there. The grass was not ruined at all and we had some pretty heavy guests sliding across our lawn.

I highly recommend this slide!
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91 people found this helpful
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Reviewed in the United States on June 13, 2016
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94 people found this helpful
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Reviewed in the United States on June 6, 2020
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8 people found this helpful
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