Dunk Tank Rentals in St. Louis, MO
Rent a 500-gallon dunk tank for your school fundraiser, church picnic, company cookout, or backyard party. Our crew delivers it, sets it up, and walks you through how it works. It needs no electricity at all, so it goes almost anywhere you can run a garden hose.
$395 for a full day, with two and three day rates available. Five throwing balls included.
Rated 4.9 out of 5 across 700+ Google reviews ยท Licensed and insured in Missouri
Our dunk tanks around St. Louis
Real setups from our own bookings: a school book fair, a business promotion, and a backyard paired with a combo bouncer.
Dunk tank rental pricing
Both tanks, blue and purple, are the same price, so pick whichever color suits your event. A 50% deposit reserves your date and is credited toward a future rental if you cancel within 48 hours. Want someone to run it for you? Event attendants are $50 per hour with a 4-hour minimum.
Customer pickup is available on our dunk tanks. They are quick to load and simple to set up, so if you can tow it, you can skip delivery. Call us and we will get it ready.
Specifications and requirements
The two that catch people out are the gate width and the fill time, so check those before your delivery window.
What we bring
- The dunk tank, in blue or purple
- Delivery, setup, and teardown
- Five throwing balls
- A walkthrough of how to operate it safely
What you provide
- A water source and garden hose to fill the tank
- About 45 minutes of fill time before guests arrive
- A clear path at least 5.5 ft wide to the setup spot
- An adult to supervise the tank the whole time
If the tank is going inside a fenced area, measure the gate first. Anything narrower than 5.5 feet means we cannot get it through, and a setup that has to be reworked on the day can add a fee. We set up on grass, dirt, asphalt, and concrete, but not on rocks.
Safety and supervision
Adult supervision required
An adult must supervise the tank at all times. If supervision leaves, the tank has to be drained before it can be left unattended.
Caged seat
The seat sits behind a mesh cage so the person in the tank is shielded from stray throws.
Inspected and maintained
Our equipment is inspected and maintained on a regular schedule, so what arrives is clean and working.
Licensed and insured
We are fully licensed and insured in Missouri, and additional coverage is available on request.
Attendants available
Would rather not run it yourself? Professional attendants are $50 per hour with a 4-hour minimum.
Inspections handled
Setups at schools, parks, churches, and other public venues may require an additional inspection. Tell us the venue and we will arrange it.
What people rent dunk tanks for
Nothing raises money like the chance to dunk a principal, a coach, or the boss. We work with clubs, corporations, sports teams, local businesses, and St. Louis school districts, and we handle events from small family gatherings up to large school carnivals.
Building a bigger event? Add a water slide, a bounce house, inflatable games, or concessions to the same order, and book event staff to run it all.
How to book a dunk tank
- 1
Reserve online or by phone. Pick your date on the dunk tank page, or call (636) 345-2735 and we will book it for you.
- 2
Confirm the site. We check your gate width, the surface, and how close the hose will be.
- 3
Place the 50% deposit. Credit card, cash, or check. Your rental agreement and invoice follow by email.
- 4
We deliver and set up. Our crew positions the tank and walks you through operating it. Then you fill it and you are ready.
Where we deliver dunk tanks
We deliver to every county and city within 100 miles of St. Louis, from our base at 403 Droste Rd in St Charles. Farther out than that? Give us a call, we can usually work something out.
- St. Louis City
- St. Louis County, MO
- St. Charles County, MO
- Lincoln County, MO
- Franklin County, MO
- Warren County, MO
- Madison County, IL
- St. Clair County, IL
- Clinton County, IL
Popular spots include St. Louis, St. Charles, O'Fallon, Wentzville, Chesterfield, Ballwin, Florissant, and Ladue. See the full delivery area.
Dunk tank rental questions
How much does it cost to rent a dunk tank in St. Louis?
A dunk tank is $395 for a full day, $553 for two days, and $632 for three days. That includes delivery, setup, and five throwing balls. A 50% deposit reserves your date. If you have a trailer, you can pick the tank up yourself and save the delivery fee.
How much water does a dunk tank hold, and who fills it?
The tank holds 500 gallons. You provide the water source and the hose, and filling takes about 45 minutes, so start well before your guests arrive.
Does a dunk tank need electricity?
No. The dunk tank needs no power source at all, which is why it works at parks and fields where there is no electricity. All it needs is a hose to fill it.
How much space and access does a dunk tank need?
The tank needs a clear path at least 5.5 feet wide to reach the setup spot. If it is going into a fenced yard, measure the gate first, because anything narrower will not clear. If this is not checked before delivery there may be an additional fee based on the extra setup time.
Who can sit in the dunk tank?
Riders must be 13 or older, with a weight limit of 250 pounds. An adult has to supervise the tank at all times, and if supervision leaves, the tank must be drained.
Can I pick the dunk tank up myself?
Yes, if you have a trailer. Dunk tanks are one of the items we let customers collect, and doing so saves the delivery fee. They load quickly and set up simply.
What colors do your dunk tanks come in?
We have a blue tank and a purple tank, both the same price, so choose whichever fits your event colors.
Do you deliver to schools and parks?
Yes. We work with St. Louis school districts, clubs, sports teams, and local businesses regularly. Setups at schools, parks, churches, and other public venues may need an additional inspection, so tell us the venue when you book and we will arrange it.
More answers on our FAQ page.
Ready to make a splash?
Check your date and reserve online, or call and we will take care of it.