How to build a DIY Homemade Dunk Tank How to build a DIY Homemade Dunk Tank
Well in this post I am going to do my best to show you how to build a DIY Homemade dunk tank. My father-in-law... How to build a DIY Homemade Dunk Tank

Well in this post I am going to do my best to show you how to build a DIY Homemade dunk tank.

My father-in-law approached me last year asking if it would be possible to build a dunk tank for the church, he wanted to use it for a July 1’st fundraiser.  Since finding the tank would require some time and networking I told him if he could get me a tank, then I would build it.

Since there really wasn’t a budget to build the dunk tank and any cost for materials would come out of the net profit that the church would raise we decided to build the dunk tank as cheap as possible.  This helped in decisions for materials to use.  For example most of the tower is built from inexpensive 2X4’s instead of a more sturdy longer lasting steel.  This theme basically continued through the whole build.

I made a video showing step by step what I did, have a look.

See below a Video of the dunk tank in action and my step by step description of how I built it

I have also put the presentation below that the video was made from.  This may help you if you would like to look at specific parts of the dunk tank in more detail.




To download the plans for the dunk tank, click the button below:


Required Parts to build this project:


  • jeet

    March 18, 2016 #1 Author

    how to make that trigger


    • jrush331

      April 13, 2016 #2 Author

      Basically, it is just a cheap pair of locking pliers (Vise Grips) welded to a piece of steel angle. clamp them to the strap of steel flat bar coming from the back of the seat. this holds the seat from going down until the arm hits the release mechanism of the locking pliers. It is really quite simple.


    • Gerry

      July 13, 2016 #3 Author

      I’m imsepsred you should think of something like that


  • jeet

    March 18, 2016 #4 Author

    how to make triger


  • Vivian Black

    May 13, 2016 #5 Author

    My family does a big reunion every year, and we are always looking for fun, new summer games to try. A DIY homemade dunk tank is something I wouldn’t have thought of, but it seems like it would be fun for all ages. The video with detailed instructions was really helpful, and, with a few people’s help, it looks like something we could build.


  • Dale

    July 21, 2016 #6 Author

    Did you get the detailed plans created? We would like to build one of these for our Volunteer Fire Departments fund raisers. This looks great.


    • jrush331

      July 22, 2016 #7 Author

      Yes, The plans are in the downloads section. If you are not already signed up to receive updates via email, just sign up using the form in the right sidebar. If you are signed up, you will see instructions in your welcome email on how to access the downloads. Hope your build goes well!


  • Ashlie Cisco

    January 26, 2018 #8 Author

    How much did did parts/supplies cost?


  • Katherine

    June 5, 2018 #9 Author

    How did you find an appropriate, cheap container for the dunk tank?


    • jrush331

      May 16, 2019 #10 Author

      The container was from a recycling depot. The owner donated it since it wa for a fundraiser. It was one of his older containers that he ws replacing


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