Is a ppm conductivity TDS measurement sufficient to assess the water quality of tap water or filter water?

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Is a ppm / conductivity / TDS measurement sufficient to assess the water quality of tap water or filter water?

Not at all ! In a conductivity measurement, also called TDS measurement, PPM measurement or Microsiemens measurement, only the electrical conductivity of the water is measured, ie only electrically charged molecules (ions) are measured. In the case of drinking water these are the most frequently occurring conductive substances: calcium and magnesium, ie their salts. Since water itself has no charge, only the conductivity and thus the amount of ions in the water is measured. This measured conductivity value can be used to determine if a reverse osmosis membrane is functioning properly or properly connected after initial setup.

However, the calculated TDS value does not exclude the quality of the water.

The quality of the water rather depends on which substances in which concentration are actually dissolved in the drinking water. And, if you leave the material level, how much "life force" a water has. Misleading to the assessment of the water quality based on the conductivity value are the non-conductive substances which also occur in the water. Accordingly, substances dissolved in the water, such as drug residues or pesticides, which enter the private water cycle through wastewater from private households or through agriculture, can not be detected in drinking water by measuring conductivity. Simply because a large number of the substances declared as "toxic" are not conductors of electricity.

A low TDS- value alone is therefore not sufficient to make a reliable statement about the water quality. A low conductance value primarily indicates that calcium and magnesium (and other salts) were reliably removed from the water. And a low conductance value shows that a UO membrane works well.


In the case of using a high-quality activated carbon block filter, or several activated carbon block filters connected in series:
here, with a TDS measuring device (conductivity measuring device), no change in the TDS value will be obtained! Why?
Because an activated carbon block filter does not remove salts, ie it will only filter out the levels of calcium and magnesium in drinking water that are not dissolved in salt form.
This varies depending on the tap water: it can be 10% or 40%. These unresolved parts of calcium / magnesium particles can be imagined as small "chunks", or even under the microscope - and they are not conductive! That is, even if I removed 40% of the "minerals" from the water, the conductance would still be the same.

With a good activated carbon block filter, a high number of 80% - 99% can be demonstrably removed from the approx. 100,000 substances that the industry now releases into the environment via laboratory analysis. Another group to 40% to 80%. Chlorine for example over 99.9%. Medication residues: approx. 90% to 99%. An activated carbon block filter is generally cheaper than a RO system and well enough in not too heavily contaminated water. Especially when used in combination with Aquadea implosion-vortex technology.


Especially with reverse osmosis systems (RO), it is often the case that ignore the filter change, the filter germs, which no prefiltering takes place and then the filter performance is severely limited. The membrane must compensate for the increased filter power requirement, resulting in shorter membrane life. As a result, the more expensive membrane must be replaced prematurely. Furthermore, an RO membrane is not a germ barrier, which is why RO water often no longer tastes in polluted devices. The largest manufacturer of RO membranes, DowChemical, (FILMTEC) writes that their membranes can only be operated with germ-free water in order to obtain germ-free water. Due to the production process, "small holes" are created in the manufacture of the membrane film, which do not affect the TDS value but represent "passage gates" for microorganisms.  Here in this analysis you can see that some substances are only retained by a reverse osmosis membrane to 25%. Such substances are then mostly retained by the activated carbon to 99%. That's why the two systems complement each other well. And that is why it is also important that the UO system has really good, high quality activated carbon filter.

Decide for yourself which substances you want to have in drinking water!

a) Let your drinking water flow through one or more activated carbon block filters, keeping the calcium and magnesium in the water, but freeing it of most unwanted substances. The world's most beautiful over-table filter with activated carbon block and germ barrier, the Okato-Nature, can be found here.

b) Or clean the water with a (more expensive) reverse osmosis system of all dissolved and undissolved substances. Then you can re-mineralize the UO-water, eg by the addition of eg calcium and magnesium. (Special cartridges). And refine the water through a turbulence with implosion, as in Aquadea, to effectively quench old information structures and give the water a high vitality, dynamism and vitality. A very good RO - system can be found here.

After a good "thorough cleaning" of the water, it is often much more important to get the water back "alive" than to try to extract the last "pollutant molecule" from it.

Usually tap water is in an "apathy" and with hardly any inner "molecular movement". To get water out of "apathy" and to make it so beneficial to the body that it gives it more "energy", "strength", "life force" than it takes from it.

No matter how clean a water is, if it has no "life force," it will hardly be a permanent solution for the body.

 

More informations:

 

a)  Water Filter technologies 2 stages carbonblock with hollow fiber - deep informations  Please click here.

b) Aquadea vortex to be attached to a Reverse Osomosis system. Please click here.

 

In German: here

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