Our workshop is open from Monday to Friday. Many products that are ordered before 3:00 PM on these days can be prepared and shipped the same day.

It is possible to pick up your order yourself in Heerde. Our workshop is open from Monday to Friday from 10:00 to 16:00
As soon as your order is ready for you, we will contact you by phone or email for an appointment.

The healthy minerals remain in the water with our filtering method,

Our filters are almost all constructed from an activated carbon cylinder with a sieve perforation of 1 micron and bundle ultra membranes with a sieve perforation of 0.03 microns.

The activated carbon adsorbs all kinds of chemicals and improves the taste of the water. The 0.03 micron ultra-membranes ensure that no bacteria can pass through the filter. The water from our filter element is therefore always safe.

The natural minerals in water are always preserved with this method of filtering.

No, minerals are not filtered out of the water.

What is called lime in "hard" tap water is dissolved calcium hydrogen carbonate (and magnesium salts). When the water is boiled, the hydrogen carbonate ion decomposes into carbon dioxide, water, and a carbonate ion, reducing solubility, and the calcium carbonate precipitates or deposits on walls. In the latter case, this can be seen in the hot parts of a pan or the heating element of a kettle. This form of calcium carbonate is called scale or scale.

The purity of water cannot be measured with a so-called TDS meter because these types of meters also measure the healthy minerals in the water.

Unfortunately, the misunderstanding that TDS meters can be used is something that we, and other manufacturers of water filters, are regularly confronted with.

This is mainly because producers of so-called 'reverse osmosis systems' claim that this is the way to test their water. Water extracted from an RO system is completely stripped of natural minerals. In our opinion, drinking this type of water is not recommended because it can extract healthy minerals from your body.

With our filters, healthy minerals (for example lime/calcium) are not filtered out of the water. In fact, the use of activated carbon will even increase the number of particles measured with a TDS meter, compared to unfiltered water.

Due to the very small sieve perforation of 0.03 microns, the bundle of ultra membranes that are inside most filter elements do not allow bacteria to pass through.
Both ditch water and rainwater can therefore be purified with these types of elements.

However, depending on how dirty the water is, the filter will close at some point. When you have the choice of water source, the advice would be to use rainwater because it is much purer than surface water such as ditch water.
The filter will then last longer.

Iron (FeII) is often a problem in shallow groundwater and sometimes also in surface water. Iron in itself is not very toxic to crops and animals, but iron-containing water can cause various technical problems such as clogging of water filters and pipes and the associated problems with machines. In addition, too high an iron content can cause rust deposits on crops or give an unpleasant odor and taste to the water.

In order to filter iron, it is necessary to oxidize it first with air (oxygen) or ozone:

Through aeration. Aerating water can be done in several ways:
a. Using a large basin in which the water is atomised. Due to this atomization, the water comes into contact with a lot of oxygen and the iron can be converted to the settleable form.
b. Applying an air compressor or Ozon generator in a tank or vessel containing the ferrous water.

After iron has been oxidized (from FeII to FeIII), it can also be filtered out of the water with our pre-filters.

No, our water filters do not filter fluoride from the water because fluoride is a substance dissolved in the water. In the Netherlands and most other EU countries, fluoride isn't added to drinking water.

Activated carbon, also known as activated charcoal, is an effective adsorbent that can remove various contaminants from water. Here is a list of some common substances that activated carbon can adsorb from water:

Organic pollutants: Activated carbon can adsorb a wide range of organic compounds, including volatile organic compounds (VOCs), pesticides, herbicides, solvents, industrial chemicals, phenols, and chlorinated compounds.

Odor and taste compounds: Activated carbon can adsorb unwanted odors and tastes in water, such as those caused by organic compounds, chlorine, or biological degradation byproducts.

Chloramines: Activated carbon can adsorb chloramines, which are chlorine compounds often used as disinfectants in drinking water treatment. Removing chloramines contributes to improving the taste and odor of water.

Chlorides: Activated carbon can adsorb chloride ions, although the capacity to adsorb chloride may be limited depending on the type of activated carbon and the concentration of chloride in the water.

Heavy metals: Activated carbon can adsorb certain heavy metals, such as lead, mercury, cadmium, copper, and zinc. However, the adsorption capacity varies depending on the specific metal and conditions.

Pharmaceuticals and hormones: Activated carbon can adsorb pharmaceutical residues and hormones that may be present in water due to wastewater discharges and other uses.

Our ultrafiltration membranes with a pore size of 0.01 to 0.03 micrometer/micron (µm), also referred to as 10 to 20 nanometers (nm), can effectively filter a wide range of contaminants from water, including:

Bacterial reduction: Our ultrafiltration membranes of 0.01-0.03 µm can provide exceptional bacterial reduction, with an efficiency of 99.9999% (≥99.9999%) or higher. This means that more than 99.9999% of bacteria, such as E. coli, Salmonella, and Legionella, are effectively removed from the water.

Suspensions and particles: These membranes are capable of filtering various suspensions and particles from the water, including sediment, sand, clay, rust particles, and other larger contaminants. The pore size of 0.01-0.03 µm ensures that these particles are retained while allowing purified water to pass through.

Algae and microorganisms: Ultrafiltration membranes are effective in removing algae, protozoa, and other microorganisms from the water. These membranes can help reduce turbidity and improve the clarity of the treated water.

Viruses: Although some viruses are smaller than 0.01-0.03 µm, they can still be partially removed through the ultrafiltration process. This is because viruses are often associated with particles or aggregates that are larger than the membrane pore size.

Macromolecules: Ultrafiltration membranes can remove macromolecules, such as proteins, polysaccharides, and some organic compounds, from the water. This helps reduce organic contaminants and improve water quality.

Although many manufacturers claim that their filter can purify a certain amount of water, this is often difficult to verify and measure.

The amount of water that can be filtered is strongly dependent on the degree of pollution of the water. Then there is also the question of what you filter and test the water on. Only bacterial reduction or also other potentially harmful substances?

The Travel-Mate has been tested for bacterial reduction; with at least 6000 liters of water, no reduced effect is visible.

With this filter we supply a sandpaper with which the ceramic can be sanded clean every now and then. If this becomes too thin (measure with the supplied jig) the filter needs to be replaced.

How long the filter will last is a good question and honestly we don't have an exact answer to this.

This is very difficult to measure. Filters with Ultra membranes such as the Siphon in principle do not allow bacteria to pass through. However, the Ultra membranes do become saturated at a certain point, so that they will then let less or no water through. This is a sign that the filter needs to be replaced.

How quickly the filter is saturated depends on the degree of pollution of the water. Water with visible contamination from mud or other materials, for example, will cause the filter to close faster than when using clear water.

In practice, the Siphon filters that we use for development work often provide a family with water every day for 2 years.

When the water filter has already been put into use and will not be used for a while, it is important to prevent bacterial growth in the filter element by removing it from the filter housing and storing it in one of the following ways:

Wet (shorter periods): store the filter element (e.g. in a plastic bag) in the refrigerator. We recommend adding Cosil47 water filter disinfection solution. Rinse the filter one more time before using it again.

Dry: find a suitable place to let the filter element dry without mold formation. But prevent the plastic caps from getting heated by, for example, a heater/radiator

For extra Bacteria reduction, the Filter elements consisting of Ceramic or activated carbon but without Ultra membranes are treated with Nano-Silver. With the C-Ultra filters, this is not immediately necessary due to the extra high filtration of the ultra-membranes, because in principle the ultra-membranes do not allow bacteria to pass through. However, if desired, it is also possible to give the activated carbon blocks of these filter elements a Nano Silver treatment. This inhibits possible bacterial growth in the activated carbon and can therefore extend the life of the filter. These filters are then referred to as CS-Ultra.

Colloidal silver consists of pure water in which nano silver particles are dissolved. A colloid is a molecular particle (in this case silver) with a size of 1 nanometer or smaller.

Because the particles are so small, they can be dissolved in water (suspension) in a special process. In that case, these particles remain in solution and will not separate (sediment).

Because silver colloids are so small, they have a strong (positive) ionic charge. This positive charge always looks for a negative discharge.

When colloidal silver comes into contact with (pathogenic) micro-organisms, the positively charged silver colloids will bind to the negatively charged enzymes from these micro-organisms. As a result, these (aerobic) organisms can no longer produce oxygen and thus die without being able to multiply.

Yes, all of our Water Filter Models and Filter Elements are BPA-Free.