What Should I Do With My Excess Ozone?

If you have ever been in a pump room when ozone is being made and it is not properly ventilated, you know the smell can sometimes be quite overwhelming. This can easily be avoided if you apply safe ventilation techniques.

There are several types of ozone destruction systems available, such as using ultraviolet light irradiation to decompose ozone as it passes, heating ozone to extreme temperatures (at or above 428 °F [220°C]) for several seconds, or sending the ozone through a catalytic destruct system. We will look at the most popular methods.

Three popular options for controlling off-gas

  • Running a line to off-gas outside
  • An ozone catalytic destruct system
  • Activated carbon destruction method

The “run-a-line” Method

Ozone Catalytic Destruct System with water trap

Ozone Catalytic Destruct System

The cheapest and easiest method is to simply run a length of ozone resistant (typically Teflon®) tubing from a off-gas vent to a elevated location outside of the building. With the half-life of ozone being so short, the excess ozone will quickly revert back to oxygen and be vented to ambient air.  If this is not an option, for example, you are in a basement that has no windows and you can’t easily run tubing under a door outside, then the next option would be a better solution.

If using this method, there are some important points to remember.

  • Make sure your line is free of debris or obstructions. Any blockages will result in back pressuring your tank and therefore causing loss of vacuum at the injector.
  • If you are operating your equipment in freezing conditions, it is advisable to move your tubing to a location that is not affected by the extreme temperature. As with most auto off-gas systems, there will be condensation build up in the lines. If that water freezes, blockages may occur.

Ozone Catalytic Destruct System

The most common method is the catalytic destruct system, which uses Carulite®, a combination of Manganese Oxide and Copper Oxide. These types of destruct systems might also contain some type of heating element to burn off the ozone as it passes to be extra sure of ozone decomposition as well as an additional “water trap” (pictured) to help capture moisture before it can reach the dry media of the destruct.

Activated Carbon Method

Activated Carbon is also an excellent way to eliminate excess ozone. The most important point to remember when it comes to using activated carbon to destroy ozone is to always use a metal container (preferably stainless steel) to hold your carbon media. The reason for this is because the process of passing ozone gas through carbon causes the carbon to heat up and reach extreme temperatures. If you use a plastic container to house your media, you greatly increase your risk of it melting and causing an ozone leak, or worse yet, starting a fire. So, when using activated carbon, keep in mind, use a metal container.

-Authored by Brandon Turney, Service Technician, ClearWater Tech, LLC


The Importance of Maintenance

Performing regular maintenance will keep ClearWater Tech ozone systems operating at peak efficiency and will prevent most issues that may cause downtime. ClearWater Tech recommends all of our systems have preventative maintenance performed annually.

Signs that a system requires maintenance:

  • Reduced ozone output
  • Reduced airflow and vacuum readings
  • The system’s blue and white indicating media have changed color

A quick rundown of what maintenance entails*:

Ozone Generator:

  • Filter replacement
  • Check valve replacement
  • Fuse replacement
  • Reaction chamber inspection/cleaning
  • Reaction chamber o-ring replacement
EcoTex™ Ozone Laundry Equipment

EcoTex™ Ozone Laundry Equipment

The ozone generator will have one type of air preparation system, heat regenerative or an oxygen concentrator.

Air Preparation – Heat Regenerative:
(internal on /AD systems such as a CD10/AD, and or an external model such as an AD40)

  • Replacement of two medias

Air Preparation – Oxygen Concentrators:
(internal on SCL and Ae Apex systems, or external such as an OXS80)

  • Filter replacement
  • Pressure relief valve replacement
  • Compressor rebuild

Venturi Injector:

  • Check valve replacement

*The exact contents of each kit is determined by the model and revision of the system, the serial number is required to insure the proper parts are included in your kit.


Performing the maintenance is not difficult and should take less than an 1.5 hours the first time, and less time with experience. ClearWater Tech also offers an in-house repair service. Let ClearWater Tech do your maintenance for you!

Please contact the Service Department at ClearWater Tech at service@cwtozone.com or 1.800.262.0203 x23 or x27 for information on:

  • Part numbers and pricing of maintenance parts (Please have the serial numbers for the systems you wish to maintain).
  • Rebuilt reaction chambers to make performing maintenance easier.
  • In-house repairs.
  • Additional components to to aid in monitoring the systems and protecting against water back-flow.
  • Tool kits that include all the tools to perform maintenance on ClearWater Tech systems.
  • Quarterly service seminars.
  • Current manuals for all ClearWater Tech products.
  • Any other information on servicing ClearWater Tech products

– Authored by Chad Relis, Service Manager, ClearWater Tech, LLC

Bookmark and Share