Chemicals and Contaminants removed with PiMag Waterfall Filter

Written by Health Indoors

Find out which chemicals and contaminants are removed when you use a PiMag Waterfall Filter to filter your tap water.

With an increase in publications that suggest our water supply is contaminated with various metals, pesticides, herbicides, insecticides and fungicides we (Nikken) have completed tests that show reductions in a large number of these contaminants.

The process conducted in our laboratory is to deliberately contaminate the tap water with a high level of each contaminant and to then take a reading for each one after filtration.

Nikken has no information on water quality in your area. The substances removed or reduced by this device are not necessarily in your water.

  • Chlorine 90% 90%

Heavy Metals

The metals below are regularly tested for by water companies and filtered through their systems to make sure that they do not exceed the regulation PCV (Prescribed Concentration or Value). The PiMag Waterfall Filter showed the following reductions versus UK tap water:-

  • Aluminium 95% 95%
  • Lead 91% 91%
  • Chromium 90% 90%
  • Cadmium 87% 87%
  • Mercury 96% 96%
  • Copper 87% 87%
  • Iron 73% 73%
  • Arsenic 68% 68%
  • Nickel 83% 83%


Nikken has tested 91 various contaminants and the consolidated results are shown here. These percentages indicate the maximum level of reduction for each category:

  • Organochlorine (insecticides) – 24 Substances Tested 99% 99%
  • Organophosorus (pesticides) – 13 Substances Tested 97% 97%
  • Urons – 13 Substances Tested 90% 90%
  • Triazines (herbicides) – 7 Substances Tested 76% 76%
  • Acidics – 18 Substances Tested 94% 94%
  • Metaldehyde (pesticide) 84% 84%
  • Trihalomethanes (THM’s) / Solvents – 4 Substances Tested 95% 95%
  • Polycyclic Aromatic Hydrocarbon (PAH) – 8 Substances Tested 86% 86%
  • Chlormequat (plant growth regulator) 72% 72%
  • Glyphosate (herbicide) 80% 80%
  • Phosphorus 91% 91%


These contaminants are not necessarily in your tap water, but where any contaminant residual is present in a treated water supply, the PiMag ® Waterfall product test shows that it is effective in significantly reducing the level of contamination.

Click here to order your PiMag® Waterfall filter. Read more about how the filter not only removes contaminants but it also re-natures your water, creating natural, spring Pi Water in your own home.

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