Modular Stock Tank Cold Plunge Plan
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Transform a stock tank into the ultimate DIY cold plunge - for less than $2,500 all-in.
This plan has absolutely everything you need to build a cold plunge from a Rubbermaid 100 or 150 gallon stock tank from start to finish. I've taken out all of the guesswork for you, simply follow along with each step to build the cold plunge you see pictured here - there are diagrams, videos and images for each phase of the project.
Both plans include a plumbing assembly to bypass a chiller if you 1) aren't ready to purchase one just yet or 2) need to pull your chiller in the colder months.
Plumbing Only Plan:
- Get a bare-bones cold plunge up and running in ~3 hours!
- Includes diagrams & step-by-step video for the entire assembly
- Complete shopping list with direct links
- PVC parts breakdown & best practices
- All-in cost for plumbing parts only ~$250
- Estimate does not include tank, pump, or ozone generator
- Includes chiller bypass assembly in the plan
- Supplemental PDF for adding IN-LINE HEAT included
Full Start-to-Finish Plan:
- This build can be achieved in 2-3 days
- Includes plan for 100 & 150 Gallon Rubbermaid Stock Tanks
- Complete shopping list with direct links
- Diagrams, video & images for each step
- All in-cost for the entire DIY Cold Plunge (as pictured) ~$2,000-2,500
- Save even more by building a DIY Lid/Cover
- Includes chiller bypass assembly in the plan
- Supplemental PDF for adding IN-LINE HEAT included
Rough Footprint (Full Build):
- 100 Gallon - 72" x 41"
- 150 Gallon - 80" x 48"
All digital download orders are final and non-refundable.
Customer Reviews
With 3 cats that love to sharpen their claws on anything with a little bit of give, I couldn't do the standard blow-up cold plunge. The other pre-fab options were too expensive, so I went on a search for DIY. As soon as I saw this thing, I knew it was what I had to build. I do a lot of woodwork, so I could have built this without the plans, but life is busy, and I knew it would save more money in time than the plans cost... and boy, were the plans ever worth it. The plans and videos saved countless hours of trial and error, and at least a few dollars only having to do the build once. It turned out so well that most people can't believe I didn't buy it pre-made. It's so well insulated that my chiller hardly ever runs. Do yourself a favor, though, and have an extra set of the mixing foam ready. One set only filled mine a little over half way. I built a platform with a lot of casters so I can move it around to get to the filter components and keep the whole thing off the ground that can get quite wet sometimes where I have it located. I also enclosed both sides of the mechanical section because I thought having the filter showing looked kind of ugly. Overall, though, fantastic plans that will easily save you more in time and extra parts than they cost.
I Received a $5k bid from a local finish carpenter to build a CP similar to Joe’s. I bought the complete build/plumbing plans and plumbing kit instead. You don’t need to be a professional finish carpenter to build this thing. The step by step plans are very thorough and walk you through the entire process. Joe made himself super available for any questions and could not have been more supportive. End result is a HIGHER quality product than I could have had built for less than half the price. Highly recommend!
I've been thinking about doing this for a while, and finally got the nerve to order the plans and build my own plunge. With some minor adjustments specific to my tank, Joe's plans were on point. During my build a mistakenly broke some parts and could not find exact replacements locally. I reached out to Joe, he was very understanding and helpful in helping me get replacement parts. I truly could not be happier with the result.
This plan for building your own DIY cold plunge is outstanding. It’s incredibly easy to follow, very well laid out, and covers every single detail you need to know. From start to finish, it walks you through the process step by step and even outlines every piece and part required—so there’s no guessing or confusion along the way. The level of detail makes the build stress-free and enjoyable, even if you’ve never attempted something like this before. Highly recommend to anyone looking to create their own cold plunge setup. 5 stars!
By far my most ambitious DIY project, but the plans were easy to follow and it turned out exactly how I had hoped. Joe was also a huge help. Couldn't be happier.
