Case Study: Elizabeth Mitchell
Holy City Farms, Charleston, SC
Increased Yield and Healthier Plants

The Challange

Elizabeth struggled with summer crop failures two years in a row, and thought that excess heat was the cause. However, after making adjustments to keep her houses cooler, she discovered that something was wrong besides just the heat. She discovered that their irrigation water was too hot to hold an essential element…oxygen. Due to a lack of dissolved oxygen (DO) in their irrigation water, the roots of the plants were being smothered every time they watered causing the plants to suffocate and die from a condition known as Root Zone Hypoxia.

The BioTherm Solution

BioTherm provided Holy City with a complete Biotherm Oxygen Infusion package. This included a Toob Infuser, Oxygen Generator and DO Commander. With this combination, she was able to infuse and manage the dissolved oxygen levels in her source water tank and maintain the infused levels direct to the rootzone of her plants. Given her remote location, the Oxygen Generator allowed her to have a dedicated oxygen supply and avoid tank refills. With the DO Commander, she was able to view DO levels at a glance on the touch screen.

How It Works

Using the Oxygen Generator, Elizabeth generates her own oxygen supply and never has to worry about oxygen tanks running empty. This consistent and inexpensive supply of oxygen is directed to her Toob Infuser where irrigation water is infused with oxygen under pressure. To integrate the entire system, she uses the DO Commander to control the oxygen flow into the Toob Infuser and to constantly monitor DO levels in real time. Before installing the BioTherm Oxygen Infusion system, DO levels in the summer were under 4ppm. Now Elizabeth maintains 20ppm despite high temperature conditions and has plans to boost her DO levels even higher. Thanks to the BioTherm Oxygen Infusion system, low DO is no