Minimize potential hazards
The risk of chlorine gas fumes produced by an accidental reaction between a strong acid and hypochlorite is eliminated
CO2 pH Control for Swimming Pools
Safer pH stabilisation with no harsh chemicals
Carbon dioxide delivers a safer, chlorine-free alternative for maintaining the pH balance and cleanliness of swimming pools, without the use of harsh chemicals.
The CarboStore™ solution from Air Products is a swimming pool water treatment system that uses CO2 to provide consistent pH levels to create a safer, more enjoyable environment for bathers and employees.
A Safer Sustainable Solution to Chlorine
Replacing hazardous chemicals with carbon dioxide (CO₂) for pH stabilisation in swimming pools delivers a range of benefits including an improved safety profile for staff and bathers, increased bather comfort, and a milder impact on the pool structure and the environment. In water, CO₂ forms a mild carbonic acid that also helps maintain alkalinity and reduce total dissolved solids. It forms a natural bicarbonate buffer which minimises peaks and troughs of pH.
The most widely used method is chlorination with sodium hypochlorite. However, it has its limitations. If the pH of the pool water is not kept between 7.2 and 7.6 the chlorinated water could cause eyes, skin and mucous membrane irritation to the pool users. At the same time, it would also become corrosive to pool's equipment.
Historically, pH control has been carried out with harsh solvents (mineral acids) that can be dangerous to handle. Carbon dioxide offers a clean and safe alternative for pH correction. When dissolved in water, CO₂ reacts to form carbonic acid, a weak acid capable of safely reducing the pH to the desired value. Recuperated from natural processes, it is also an environmentally friendly solution.
How does the CO2 Solution work?
The CarboStore™ system from Air Products removes the need to use chlorine for treating swimming pool water. The fit and forget system stores and diffuses carbon dioxide into pools at a gradual and consistent rate, using telemetry to send a signal to Air Products when the tank is running low. Because of this, pH levels are kept stable and there’s no requirement for manual handling and management from staff.
A CarboStore™ system is typically installed in the pool plant room and uses some of the existing equipment that’s required to operate a chlorine treated pool.
Air Products provide the 1650mm x 610mm tank, along with a CO2 monitor, CO2 repeater and external fill point.
So that carbon dioxide can be delivered safely and effectively when notified by the telemetry system, the external fill point needs to be located in an area that is accessible for a small truck and a maximum of 30 metres from the CarboStore™ tank.
Customer Service at our Heart
Just like your business, customer service is key to our success.
Unlike many suppliers, we have a dedicated Hospitality team at Air Products which can provide technical and commercial advice on our all of our leisure gases and systems. The extended team can also provide engineering solutions, safety inspections and training.
Complete the Contact Us form to be directed to a member of the team who will be happy to talk with you.
Interested in learning more about pH control in pools?
Our experts will work with you to design the best solution for your needs.
