Unfortunately, this simple and frequently asked question has many answers and should be explained in more detail here. Chlorine dioxide eliminates bacteria, viruses, fungi, spores, algae, mites, parasites and biofilms across a very broad spectrum and is considered the best germicide in the world. There are various stages of development for chlorine dioxide-based products, each with different advantages and disadvantages. These stages of development are explained in more detail here:
The classic version – our MMS CLASSIC – consists of two components: a bottle containing a 25% sodium chloride solution (component A) and a bottle containing 4% hydrochloric acid (component B) as an activator. Mixing both substances in a 1:1 ratio produces the desired active ingredient – chlorine dioxide. In this case, dosing during activation is always done drop by drop. Due to different drop openings and temperatures, the drop size can vary by up to 250%. This makes accurate dosing of the classic version difficult. Extrapolating to larger amounts of water only increases this error. Therefore, the dosage recommendations for MMS CLASSIC are not listed in the following tables.
General rule: 3 activated drops of MMS CLASSIC (in 150 ml of water) = 1 ml of CDSpure / 1 ml of activated CDSplus.
ATTENTION: MMS CLASSIC is always dosed drop by drop during activation! Dosage is only possible to a very approximate degree!
Depending on the bottle size, our CDSplus® contains one or more activation tablets and a liquid component (without water!). After activation, you obtain a chlorine dioxide solution with a concentration of almost 3000 ppm. This can be precisely measured in millilitres using a pipette or a measuring cup.
ATTENTION: CDSplus is always dosed precisely in millilitres (not in drops)!
Our CDSpure®, on the other hand, is a ready-to-use solution with a high degree of purity. No prior activation is required.
NOTE: CDSplus is always dosed precisely in millilitres (not in drops)!
The dosage of activated CDSplus and ready-to-use CDSpure solution is therefore identical.
Although the radical effect of chlorine dioxide on germs is always the same, different countries have different legal requirements regarding dosage. Since the germ count is also higher at higher ambient temperatures, this can be explained by the geographical location of these countries.
The following table shows the maximum amount of water that can be disinfected with our various CDSplus and CDSpure products and different dosage forms (all with a chlorine dioxide concentration of just under 3000 ppm). The exposure time is always 20 minutes.
In France, for example, a 100 ml bottle of CDSpure can only be used to disinfect up to 500 litres of water, whereas in Switzerland it can be used for up to 6,000 litres. For this reason, we will always indicate the range from 500 to 6,000 litres on the 100 ml bottles in future. We will base our figures on the smallest and largest values in Europe. These figures refer to the disinfection of drinking water and are listed in the left-hand column (under the tap symbol).
| Tank capacity | Amount of chlorine dioxide |
| Liter | ml |
| 2,5 | 1,25 |
| 5 | 2,5 |
| 20 | 10 |
| 25 | 12,5 |
| 50 | 25 |
| 100 | 50 |
| 200 | 100 |
| 250 | 125 |
| 500 | 250 |
| 1.000 | 500 |
| 2.000 | 1.000 |
The photo serves as an example for 100 ml CDSpure/CDSpure.
*The right-hand column refers to shock disinfection or the disinfection of the container described below.
In practice, the user knows the amount of water they want to disinfect. The following table shows the required amount of chlorine dioxide solution.
| Volume of water | CH | DE / IT | AT | FR |
| Liter | ml | ml | ml | ml |
| 1 | 0,02 | 0,07 | 0,13 | 0,20 |
| 2 | 0,03 | 0,13 | 0,27 | 0,40 |
| 3 | 0,05 | 0,20 | 0,40 | 0,60 |
| 4 | 0,07 | 0,27 | 0,53 | 0,80 |
| 5 | 0,08 | 0,33 | 0,67 | 1,00 |
| 6 | 0,10 | 0,40 | 0,80 | 1,20 |
| 7 | 0,12 | 0,47 | 0,93 | 1,40 |
| 8 | 0,13 | 0,53 | 1,07 | 1,60 |
| 9 | 0,15 | 0,60 | 1,20 | 1,80 |
| 10 | 0,17 | 0,67 | 1,33 | 2,00 |
| 20 | 0,33 | 1,33 | 2,67 | 4,00 |
| 30 | 0,50 | 2,00 | 4,00 | 6,00 |
| 40 | 0,67 | 2,67 | 5,33 | 8,00 |
| 50 | 0,83 | 3,33 | 6,67 | 10,00 |
| 100 | 1,67 | 6,67 | 13,33 | 20,00 |
| 200 | 3,33 | 13,33 | 26,67 | 40,00 |
| 300 | 5,00 | 20,00 | 40,00 | 60,00 |
| 400 | 6,67 | 26,67 | 53,33 | 80,00 |
| 500 | 8,33 | 33,33 | 66,67 | 100,00 |
In most cases, the degree of contamination of water with germs is not visible to the naked eye. A glass of water can contain several thousand to several million germs and still look clean. Without a fully equipped laboratory, the germ load can therefore only be estimated. In addition, temperatures above 21 degrees Celsius can significantly reduce the effectiveness of the chlorine dioxide solution. In order to reliably rule out residual germ contamination, chlorine is often significantly overdosed in practice. This can reach two to ten times the values specified in the table. It has been proven that this has no adverse health effects. The active ingredient chlorine dioxide either decomposes into harmless water, oxygen and a minimal amount of common salt, or partially escapes into the environment (degassing). Therefore, especially when working with large quantities of water and high dosages, it is important to always work in well-ventilated rooms.
Unfortunately, there is no general answer to this question. The shelf life depends on the ambient temperature, the degree of contamination in the environment and the number of times the container is opened. The storage time can therefore range from a few weeks to several months or longer. The warmer and more microbiological the environment, the faster regermination can occur. Frequent removal from the container also promotes the degassing of chlorine dioxide residues and the penetration of environmental germs, thus shortening the shelf life.
The above information refers to the sterilisation of drinking water and requires a clean or sterile vessel or container. If water residues remain in drinking water containers, e.g. in Caravon, for a long period of time, this can lead to a significant increase in germs and algae. In this case, the container and pipes should be thoroughly sterilised, at least at the beginning of a new period of use. Shock cleaning requires a significantly higher dosage of chlorine dioxide and a longer exposure time. For this intensive type of container cleaning, there are only guidelines in accordance with the German Drinking Water Ordinance. It is not necessary to differentiate between individual European countries.
Fill the tank one-third full with water. Then add the amount of chlorine dioxide solution specified in the table below and fill the tank completely. Briefly open all taps so that the solution reaches all pipes and taps. If possible, briefly open all taps again after 6 hours. The total exposure time should be 6-12 hours. Then empty the tank completely via the waste water tank. Rinsing is not necessary. The tank can now be filled with fresh water and preserved with the above dosages for disinfecting drinking water. Repeat the process if the tank is very dirty.
| Tank capacity | Amount of chlorine dioxide |
| Liter | ml |
| 2,5 | 5 |
| 5 | 10 |
| 10 | 20 |
| 12,5 | 25 |
| 25 | 50 |
| 50 | 100 |
| 100 | 200 |
| 125 | 250 |
| 250 | 500 |
| 500 | 1.000 |
| 1.000 | 2.000 |
Note: The values given here are the result of an adjustment to the specifications of individual European countries. During a transition phase, other values may still be indicated on products from current stock. In future, we will only use these values on our products.