Watch the short: Installing an ozone generator into a water tank
If you’re into rainwater harvesting, you know that maintaining clean water in your storage tanks is essential. One effective way to achieve this is by using an ozone generator. In this post, we’ll explore how to properly install an ozone generator inside a water tank or cistern — and keep your water fresh, algae-free, and safe from harmful bacteria.
Why Use an Ozone Generator?
Ozone generators keep rainwater clean without harsh chemicals. Our recommended model, the JED 203, is designed specifically for this purpose. There is one small challenge: these generators can only pump ozone into water at a maximum depth of 4 feet. To overcome this, we’ve developed a simple floating tether solution.
The Floating Tether System
The floating tether is a floating ball attached to four feet of chain, which is zip-tied to the air stone of the ozone generator. The air stone is what delivers ozone into the water. With this setup, the air stone hangs precisely four feet from the water surface — regardless of the water level in the tank.
How It Works
The floating ball allows the air stone to rise and fall with the water level, ensuring consistent ozone injection at all times. Once installed, plug the ozone generator into a timer and set it to run every few hours for short durations. This regular ozone infusion keeps your tank fresh, reduces algae growth, and controls bacterial levels.
Summary
Using an ozone generator with a floating tether is an easy, chemical-free way to maintain clean water in your rainwater harvesting system. Whether you’re a seasoned harvester or just getting started, this setup significantly improves your system’s water quality with minimal ongoing effort.
Shop ozone generators: JED Engineering Ozone Generator 203 (120V)
