Dunk Tank
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- Setup Area: 12' L x 12' W x 10' H
- Outlets: Does not require electric. Will need placed within reach of hose.
- Attendants: Min. 1 Adult
- PricingAll Day Rental$345.00Multi-Day PricingAdd +50% for each additional day
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- $345.00
Dunk Tank Rental
The only rental where your guests become the entertainment — a 500-gallon crowd magnet that gets everyone laughing, cheering, and lining up to throw
The Dunk Tank is a different kind of rental. While most inflatables keep guests entertained individually, the dunk tank turns the whole crowd into participants — the throwers aim, the crowd cheers, and whoever is brave enough to take the seat becomes the star of the event. A commercial-grade unit with a 500-gallon water capacity, secure caged seating, and a setup that works at virtually any outdoor venue across Wentzville, MO and surrounding areas. One of the most effective fundraising tools available — city events have raised $3,000 to $5,000 in a single day using the dunk tank alone. All-day rentals start at $345. No electricity required — just a water hose.
Review the details below → check availability → reserve your date
Water source required. A garden hose within reach of the setup location is needed to fill the tank on-site. No electricity required. Delivery fees calculated at checkout based on your event address.
“Great family and great communication. We have used them several times and each time they are consistently on time and very professional.”
— Verified Google Review, Repeat Customer
Simple, Transparent Pricing
All-day rental — no hourly clock watching. Delivery, setup, and pickup included.
Delivery fee calculated at checkout based on your event address. Check your date and see the full total →
Pair the Dunk Tank With These
The dunk tank draws the crowd and keeps them engaged. These additions complete the full event experience around it.
Where the Dunk Tank Shines
Any event with a crowd, a volunteer willing to get wet, and a good reason to laugh — the dunk tank delivers every time.
The Dunk Tank as a Fundraising Machine
A $345 rental that has helped events raise thousands of dollars in a single day. The math works because of how the game plays.
💰 Why the Dunk Tank Raises More Than a Donation Jar
Most fundraising asks are passive — a jar on a table, a donation link, a raffle ticket. The dunk tank is an active, social experience where participants are paying for entertainment, not just donating. That distinction matters enormously for total revenue.
Put a school principal, community leader, or beloved local figure in the seat. Charge $1–$5 per throw. Watch the line form and stay formed all day. People who wouldn’t drop $5 in a donation jar will happily throw three times — because they’re getting something in return: the chance to dunk the boss. The social dynamic drives revenue that passive fundraising simply cannot match.
Setup, Requirements & What Makes It Work
📏 Space & Setup
Setup area: 12’ L x 12’ W x 10’ H. One of the most compact footprints in our inventory. Works on grass, pavement, and any reasonably level surface.
Water hose required within reach of the setup location to fill the tank on-site. Our crew handles delivery, full setup, and complete pickup — no work required on your end.
💧 Water & Weather
No electricity needed — just a garden hose. The tank fills on-site and operates purely on water. Plan for a wet zone around the setup area.
Hot weather is dunk tank weather. This is a warm-weather rental. Contact us for cold-weather or early spring events to discuss whether conditions are appropriate.
🌊 Why the Dunk Tank Creates a Different Kind of Event Energy — and Revenue
Most rentals entertain guests passively or individually. The dunk tank is one of the few attractions that turns the entire crowd into active participants simultaneously. When someone is on the seat, every person nearby has a reason to watch, cheer, and get involved — whether they’re throwing, waiting their turn, or just cheering from the sidelines.
That shared experience is hard to create with most rentals. It’s especially powerful at fundraisers where the social dynamic drives repeat participation — community events have raised $3,000 to $5,000 in a single day from dunk tank throws alone. At corporate events it creates genuine shared moments between coworkers. At school events, putting a familiar face on the seat turns a simple activity into an all-day talking point and a serious revenue driver.
Dunk Tank FAQs
All-day rentals are $345. For multi-day events, each additional consecutive day adds 50% of the base rate ($172.50 per day). Delivery, setup, and pickup are included in every rental. Delivery fee is calculated at checkout based on your event address.
No — the dunk tank requires no electricity at all. It operates entirely on water. You just need a garden hose within reach of the setup location to fill the 500-gallon tank on-site. This makes it one of the most versatile rentals in our inventory, usable at parks, fields, and any outdoor location where power isn’t available.
The dunk tank requires a setup area of 12 feet long by 12 feet wide by 10 feet tall. This is one of the most compact footprints in our rental inventory — it fits comfortably in most backyards, school fields, and parking lot event setups.
Anyone willing to get wet! At school events it’s often the principal, a teacher, or a coach. At corporate events it’s frequently a manager or company leader. At backyard parties it’s whoever is brave enough to volunteer. The person on the seat genuinely becomes the star of the event — the line to throw almost always forms the moment someone sits down.
Yes. The participant sits in a secure enclosed cage above the water tank. When the target is hit, they drop into the water below in a controlled, safe manner. A minimum of one adult attendant is required at all times during use. The tank is filled to a safe water level appropriate for participants of all ages.
Yes. Every rental includes delivery, full setup, and complete pickup. Our crew handles everything — you just need to have a garden hose accessible near the setup location. No additional setup work or tools required on your end.
Very effective — more so than most passive fundraising methods. Community and city events have raised between $3,000 and $5,000 in a single day using the dunk tank as their primary fundraising attraction. The key is the social dynamic: participants pay for entertainment, not just to donate. Charging $1 to $5 per throw keeps the barrier low enough that people come back repeatedly, especially when a familiar or popular figure is in the seat. A school principal, a coach, a community leader — whoever the crowd most wants to see get wet drives the most revenue. The line builds itself.
What Customers Are Saying
300+ five-star Google reviews from real customers across St. Charles County and beyond
Dunk Tank Rentals in Wentzville & Surrounding Areas
We deliver dunk tank rentals for school fundraisers, corporate picnics, church festivals, backyard parties, and community events throughout Wentzville, Wright City, St. Charles County, Warren County, Lincoln County, and nearby Missouri communities.
⭐ Family-owned · Fully insured · COI available · Delivery and setup included
Reserve the Dunk Tank for Your Event
School fundraisers and summer event dates book fast. Lock in your date and get ready for the splash.
Our dunk tank rental in Wentzville, MO is a top choice for school fundraisers, corporate picnics, church festivals, and backyard parties searching for dunk tank rentals in Wright City, O'Fallon, St. Peters, Lake St. Louis, Troy, Warrenton, Cottleville, New Melle, St. Charles, Defiance, St. Charles County, Warren County, Lincoln County, and surrounding Missouri communities. Backyard Party Rentals, family-owned since 2019, delivers clean commercial-grade dunk tanks with professional setup and pickup — no electricity required, just a water hose and a brave volunteer.
