Water filter test

This article explains this testing phase and the results obtained, and provides additional explanations and conclusions that should be answered by you.

Drinking water quality is important

Since water plays a crucial role in our well-being, one should pay attention to a good drinking water quality. Many water sources – be it tap water from the tap or bottled water from the supermarket – provide water whose pH is in the acidic area. In daily life, it is hard enough to avoid acidic foods and drinks (such as sodas or coffee). Your drinking water should provide the right balance. That is why it is important to us that they filter their water.

The manufacturer Nikken has made it its mission since 1975 to produce products that support our well-being. The importance of pure, living water has long been known in Japan. Nikken puts a lot of knowledge and know-how into research in order to be able to provide us with the best products. This is also an outstanding device that conjures up filtered water with a soft taste in no time.

The result is the Pimag Waterfall model and the “to-go” model: the water bottle with integrated filter cartridge.

basic balance in the body can be restored by a diet with the right acid/base content.
Drinking basic water helps to compensate for the loss of minerals.
– Acidosis, or acidification,can manifest itself in many ways: brittle bones, hormonal problems, osteoporosis, diabetes, energy lessness or inertia are just a few signs that could indicate a possible imbalance.
This pH imbalance in the body means that the body must “borrow” the necessary minerals from its reserves.
These are mainly minerals such as magnesium, calcium, sodium and potassium, which are stored in vital organs and bones.
– Nikken’s filter is based on a tested principle – it produces basic water in the pH range between 8.5 and 9.5. The filter simultaneously removes a variety of chemicals and contaminants/pollutants.
The model enriches the water with numerous minerals.
All of this is made possible by its natural gravity filtration system, which reheats the water that comes out of the tap at your home. For the operation of the PiMag Waterfall model® no power source or expensive water connection is necessary. This is often required for many water treatment equipment from the trade. The PiMag Waterfall filter® has undergone numerous tests during its development by Nikken, which prove the advantages of the device.

Investigation of basic water

Since we argue that the PiMag Waterfall® can increase the pH of tap water from 7 or 7.5 to a pH of 8.5 or 9.5, it was important to increase the water produced by our system to the to examine minerals normally used in basic (alkaline) water.

In our laboratory, 5 litres of tap water were filtered daily with our filter system over a period of 90 days, with regular samples taken from the filtered water.

We compared these samples against the tap water sample and calculated the increase (net) as a percentage.

Depending on the water quality, these results may vary slightly in Europe. PiMag Waterfall® 90-day filter test, percentage increase in mineral content compared to BRITISH tap water

  • Magnesium
  • PiMag Waterfall
  • Magnesium
  • + 10 %
  • Sodium
  • + 2 %
  • Potassium
  • + 6 %
  • Manganese
  • + 3 %
  • Calcium
  • + 2 %

Each of these minerals is an important part of a healthy diet – the increased proportions in your drinking water can help make your body healthier and more resilient.

ORP (oxidation reduction potential)

The ORP measures the performance of a water system, by means of a chemical reaction, either disbly disabling or absorbing electrons. The ORP is measured in millivolts and it indicates whether a solution has oxidizing or deoxidizing properties. The higher the positive value, the more oxidizing the solution. A low positive value or a negative value indicates the deoxidizing properties of the solution and that it contains antioxidants. In our laboratory, 745 liters of water were filtered with our PiMag Waterfall® during the test phase of the device, with a measurement being made every 20 liters. The test data show that the ORP values of the tap water (before filtering) were in a range of 420 mV to 580 mV. After the filtering, a reduction of these values was observed, which was now in the range of 90 mV to 380 mV. The tests were carried out under laboratory conditions. Results may vary depending on the location. Chlorine, for example, is an oxidizing agent and our PiMag Waterfall® showed a reduction in chlorine content (see table below):

PiMag Waterfall®, percentage decrease compared to UK tap water

PiMag Waterfall
-90 %

  • Chlorine
  • PiMag Waterfall
  • Chlorine
  • -90 %

The combination of a higher pH with a lower ORP (oxidation-reduction potential) shows that the PiMag Waterfall® not only provides basic water, but also water, which additionally has the advantages of antioxidants.

Testing of water for contaminants

As more and more publications indicate that the water in our water supply is contaminated with numerous metals, pesticides, herbicides, insecticides, and fungicides, we have carried out tests that reduce a large number of these contaminating substances. In the process used in our laboratory, the tap water to be filtered was mixed with a high concentration of the respective contaminating substance. After filtering, the concentration was measured again.

Nikken does not have information about water quality in your residential area. The substances that can be removed or reduced by this product are not necessarily in your water.

Metals in the water

Drinking water is regularly examined by water supply companies with regard to the content of the metals mentioned below. System filtering ensures that the prescribed concentration or values are not exceeded. The PiMag Waterfall® showed the following reductions compared to British tap water:
  • Verunreinigung
  • Arsenic
  • Cadmium
  • Chrome
  • Lead
  • Copper
  • Nickel
  • Aluminum
  • Iron
  • Mercury
  • %
  • 68 %
  • 87 %
  • 90 %
  • 91 %
  • 87 %
  • 83 %
  • 95 %
  • 73 %
  • 96 %

Impurities in water

Nikken has tested more than 91 different contaminants and provides the well-founded results below:

  • Schadstoffgruppe
  • Metaldehyde (pesticide)
  • Organophosphorus pesticides
  • Acidic substances
  • Uronic acids
  • Organochlorinsecticides
  • Triazine herbicides
  • Chlormequat
  • Trihalomethanes (THMs) /
  • Polyzyklische aromatische
    Kohlenwasserstoffe (PAK)
  • Phosphate
  • Glyphosate (herbicide)
  • Untersuchte
  • 1
  • 13
  • 18
  • 13
  • 24
  • 7
  • 1
  • 4
  • 8
  • 1
  • 1
  • PiMag Waterfall®
    Reduzierung (in %)
  • 84 %
  • 61-97 %
  • 70-94 %
  • 62-90 %
  • 90-99 %
  • 66-76 %
  • 72 %
  • 72-95 %
  • 80-86 %
  • 91 %
  • 80 %

Conclusions Water filter test

Our test results have shown that increasing the pH of tap water means an increase in mineral content (calcium, magnesium, sodium, potassium and manganese). Calcium is significantly involved in the transmission of nerve signals, blood clotting and muscle contraction. According to studies, magnesium protects diabetics from consequential damage in drinking water and lowers the risk of heart disease, especially in women. Sodium is an essential nutrient that regulates blood volume and blood pressure and plays an important role in the function of nerves and muscles. A potassium-rich diet supports muscle growth and pH balance in the body, while the antioxidant magnesium helps protect against damage from free radicals. The results showed an increase in silica of 36 . There are numerous scientific studies on the benefits of silica in drinking water. Although there is still no conclusive proof, there is much to suggest that an increased concentration of silica can be associated with a reduced risk of dementia. The removal of chlorine, an oxidizing substance, contributes not only to a better taste and smell of the filtered water, but also to the reduction of ORP. Even in the treated water in our water supply, the PiMag Waterfall ® can reduce the level of contamination.

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