How ECO2MIX Works

CO₂ dissolved off the mainline, carbonic acid injected back in, and water pH held on target automatically.

A CO₂ Injection System Installed at Your Pump Station

ECO2MIX dissolves CO₂ off the mainline and holds your target pH with a continuous feedback loop:

  1. 01

    Water is drawn from downstream

    ECO2MIX takes a sample of water from the mainline downstream, before the pipe goes underground. That water is already treated and mixed, so it shows what is actually going to your field.

  2. 02

    pH is measured as it enters the reactor

    A probe reads the pH of that water as it comes in. This is the result of the treatment so far.

  3. 03

    Carbonic acid is made in the reactor, off the mainline

    CO₂ from the on-site tanks is fully dissolved into the water under pressure, so it becomes carbonic acid (CO₂ + H₂O → H₂CO₃) inside the reactor.

  4. 04

    Only carbonic acid water goes back in

    ECO2MIX injects the carbonic acid water upstream, with no gas bubbles. It mixes with the full flow in the mainline.

  5. 05

    The loop adjusts, constantly

    The treated water reaches the sample point again, and ECO2MIX raises or lowers the CO₂ dissolved to hit your target pH, typically 6.5 to 6.6.

ECO2MIX always measures the result of its own treatment, so it keeps hitting the target when conditions change, including fertilizer injection, different sets and flow rates, and changes in water quality.

ECO2MIX equipment on a trailer: CO2 tanks that store liquid CO2, and the reactor that dissolves the CO2. Water comes in from the mainline and carbonic acid goes back out.

What ECO2MIX Does Differently

CO₂ Gas Injected Into the Line

  • Gas goes straight into the mainline
  • Undissolved bubbles can escape unused
  • More CO₂ used, so more cost and more tanks to store
  • pH can drift with flow and fertilizer changes
  • Equipment, CO₂ supply, and upkeep are yours

ECO2MIX

  • CO₂ fully dissolved in a side reactor
  • Only carbonic acid water is injected
  • Far less CO₂ for the same pH result, so lower cost and less storage
  • Downstream sample feedback holds the target
  • Fully managed: equipment, CO₂, and service included

Installation and Service

ECO2MIX is a fully managed service, with no equipment to buy and no capital cost. We deliver and install the equipment, and our service team takes care of it from there.

One price covers equipment, installation, CO₂ supply, remote monitoring, calibration visits, and maintenance. Price depends on water quality and flow rate.

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Mark Velasquez, Field Service Technician

What Carbonic Acid Does in Water and Soil

Bicarbonates are reduced

Carbonic acid lowers pH, which turns dissolved bicarbonate into carbonic acid. Water at pH 6.5 carries roughly half the bicarbonate of untreated pH 8.0 water.

Carbonic acid and bicarbonates →

Nutrients become available

Iron, manganese, zinc, and phosphorus become more available to plants as soil solution pH moves from 7.5 to 8.5 toward 6.2 to 6.8.

Iron deficiency chlorosis →

No residual salts

Carbonic acid breaks back down to CO₂ and water. It leaves no sulfate or chloride behind and doesn't raise EC.

Salt buildup under drip →

Soil biology is fed

The CO₂ released in the soil feeds aerobic microbes and can support soil organic matter over time.

Soil health →

Questions Before You Request a Proposal

Can I buy carbonic acid instead of installing a system?
Carbonic acid isn't sold or shipped in drums the way sulfuric acid is. It forms the moment CO₂ dissolves in water, so ECO2MIX makes it on site at your pump station, from CO₂ we deliver, as part of the service.
Is ECO2MIX the same as injecting CO₂ gas?
No. ECO2MIX fully dissolves CO₂ in a separate reactor and injects only carbonic acid water, with no bubbles, so it uses far less CO₂.
Is my operation a fit for ECO2MIX?
ECO2MIX works with commercial production agriculture and golf courses. A single unit usually treats 40 or more acres from one pump station, and the equipment can treat over 1,000 acres from one pump station. Multiple reactors can be combined for larger operations. Golf courses of any size are a fit. Backyard, hobby, and small residential systems are not.
How do I know if the system is working?
Three checkpoints: the reactor display shows treated water pH in real time; a cup test at the furthest emitter during irrigation, measured immediately with a field meter, confirms the target is reaching the end of the line; and soil health tests once or twice a season track the long-term trend. The full sampling protocol is on the What to Expect page.
Is CO₂ safe to use near workers and equipment?
Yes, in outdoor and open settings. CO₂ is non-corrosive and non-flammable; it is the same gas used in beverage carbonation. The main caution is buildup in enclosed indoor spaces, which is not a concern in outdoor agriculture and golf.

Comparing options first? See how the common irrigation water pH control methods compare, or all frequently asked questions.

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Tell us your water source, flow rate, and acreage. We'll size a system and send a proposal. No obligation.

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