Barbed Venturi Connections: DIY Guide
How to Make Barbed Connections with the DIY Cold Plunge Venturi Injector
If you're building a DIY Cold Plunge, water sanitation is a crucial element to keep things safe over time. The Barbed Venturi Injector is key in achieving maintenance-free water sanitation.
In this post, I’ll cover what the Venturi Injector is, how it works, why it’s essential for your cold plunge, and how to install it properly.
What Is a Venturi Injector and Why Is It Important?
The Venturi injector is a specialized fitting designed to pull ozone into your plumbing system. When paired with an ozone generator, it helps sanitize the water in your cold plunge. The venturi is what allows ozone to enter your water through the plumbing lines, working in conjunction with your filtration system to keep the water clean for months on end.
Here’s how it works:
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Water flows through the Venturi’s cone-shaped interior, which speeds up the flow, decreases the pressure and creates a vacuum.
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The vacuum pulls ozone from the generator through a tube connected at the top of the fitting, allowing ozone to mix with the water and sanitize it without the use of harsh chemicals
Proper setup of your plumbing system is essential to ensure the Venturi functions correctly. A misconfigured plumbing setup or underpowered pump can prevent the vacuum from forming so it is critical to set everything up correctly.
Step-by-Step Installation Guide
What You’ll Need (with links):
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Hot Water & Mug
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Dish Soap
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(Optional) Hose clamps & Screwdriver
Installation Steps:
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Prepare the Hose:
- Pour 1" to 1-1/2" of HOT water in a coffee mug. This will be used to warm up the ends of the spa hose, making it easier to attach. Let the hose soak while you do Step 2.
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Lubricate the Fitting:
- Apply a small drop of dish soap to the barbs on both sides of the Venturi injector and spread it around evenly. This helps the hose slide on smoothly.
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Attach the Hose:
- Slowly wiggle the hose onto the barbs until it’s fully seated against the fitting. Repeat for the other side.
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Secure the Connection:
- If you’d like to add hose clamps, do it while the hose is still warm. Tighten the clamps snugly to ensure a watertight seal.
Troubleshooting and Maintenance
Dealing with Leaks:
If you notice leaks at the hose connections, you can:
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Remove the Filtration & Sanitation Assembly and reheat the spa hose with a heat gun or hairdryer.
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Tighten hose clamps onto the Spa Hose.
Testing Venturi Functionality:
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Check for bubbles at the tank’s inlet or return. The bubbles indicate that the Venturi is creating a vacuum, regardless of whether an ozone generator is connected.
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If there are no bubbles, you've got a plumbing issue to investigate. Check your pump, your filter and overall plumbing configuration. Again, all of your components work together to make the vacuum happen, if you are set up incorrectly it won't work.
Why Choose This Venturi Injector?
I've done the leg work. The past 2-1/2 years have been a constant test and retest, looking for the best way to build a legit DIY Cold Plunge, not one that is just thrown together.
This venturi has been tested against other ones you can find on Amazon & other stores. It is easier to use, has less potential for leaking, performs better and seamlessly attaches to how the rest of your plumbing needs to be set up.
You can obviously shop wherever you prefer, but if this article was helpful I hope you consider DIYColdPlunge.com.
Ready to Build Your Perfect Cold Plunge?
Whether you’re just starting or upgrading your system to have hands-off sanitation, the Venturi injector is an essential piece of your plumbing setup.
For step-by-step guidance on plumbing or a start-to-finish build — including detailed diagrams, videos, and shopping lists— check out these plans & customer reviews.
For more tips, tutorials, and product recommendations, subscribe to DIY Cold Plunge on YouTube.
Thanks!
Joe
