TAPP Water Independent Laboratory Test Results

TAPP Water filters have been independently tested to work in Malta for the public supply of water from the tap.

The tests were carried out in December 2020 and apart from a chlorination test carried out locally the tests were carried out to international standards by a laboratory in Spain (iTabe). The full details of the test results are available in our FAQs and here a summary of all the filtered water test results are supplied as well as links to other international tests carried out on TAPP Water products, and an explanation of each factor.

These solid test results are the reason we can confidently offer our 45 day great taste guarantee.


Filtered water test result

Free Chlorine Less than <0.1 MG/L was present
Bacteria None
pH 9.3
Hardness 36.03 Mg/L - Soft
Trihalomethanes (THMs) <1 ug/L - No significant levels


<2 ug/L - No significant levels


< 1 ug/L - No significant levels

Lead, Chrome, Nickel, Copper, Arsenic, Manganese

< 1 ug/L - No significant levels


< 1 mg/L - No significant levels


< 0.05 mg/L - No significant levels


< 0.15 mg/L - No significant levels


< 0.1 mg/L - No significant levels


Free Chlorine

Chlorine is used to ensure that public supply water is safe to drink, you can find out more about if tap water in Malta is drinkable in our detailed article. Chlorine is responsible for poor taste and odour in the water in Malta.


The measure of pH describes water as acidic (pH less than 7), neutral or more alkaline water has a pH of more than 7.


Conductivity is the ability of water to conduct electricity and so measure the ionic content in a solution. This measure is the base measure for TDS which is often, and mistakenly taken as a measure of water quality, read more about why that is. Conductivity of 200–800 μS/cm in drinking water is considered normal.

Hardness of the water

General guidelines for classification of waters are: 0 to 60 mg/L (milligrams per liter) as calcium carbonate is classified as soft; 61 to 120 mg/L as moderately hard; 121 to 180 mg/L as hard; and more than 180 mg/L as very hard.

Trihalomethanes (THMs)

These are Chlorine by products which occur as a by product of water treatment and are often found in chlorinated water supplies. When a water supplier uses chlorine to disinfect water, the chlorine can react with organic constituents in the water. This reaction may lead to the presence of trihalomethanes, or THMs. These are Chloroform, bromodichloromethane, dibromochloromethane and bromoform. Trihalomethanes are a concern because they are considered Group B carcinogens, meaning they have caused cancer in laboratory animals. They are also damaging to the environment and linked to colorectal cancer.


Bromoform is a chlorine by product, used as a water disinfectant (to kill bacteria and virus), it is a heavy colourless liquid and it adds taste to the water.  Although small amounts of bromoform in drinking water does not lead to health problems, studies on animals show that the contaminant may harm the liver and kidney.

Despite its lack of data on human tests, experts believe that consuming dibromochloromethane-contaminated drinking water at levels above the admitted levels may result in liver cancer. The health issues associated with the substance in drinking water may depend on the amount of dibromochloromethane and the level of exposure of the individual.
Lead, Chrome, Nickel, Copper, Arsenic, Manganese
The presence of heavy metals such as lead, chrome, nickel, copper, arsenic and manganese can cause health issues and some cause poisoning.


Some zinc is required by the body, but too much Zinc in water can have toxic effects on hums and cause poor tasting water.


Fluorine is a common additive to water however there are some concerns about the health effects of fluorine in water.

Lithium occurs naturally in drinking water.

Nitrates originates primarily from fertilizers, septic systems, and manure storage or spreading operations.

The results of the independent laboratory tests show clearly that TAPP Water filters are as effective for the water in Malta as they are in the USA and Europe and you can learn more about the TAPP Water advanced microfiltration for home water filters here.

TAPP Water filter international tests are also conclusive in confirming that TAPP Water filters are effective at filtering over 100 contaminants from public water supply.

TAPP Water Interntional lab tests

You can read more about the latest tests from SimpleLab(US), AQA (Germany) and iTabe at the global website for TAPP Water.

TAPP Water SA issues a global certification document summarising the certifications and laboratory tests Last updated (2021-08-16)and you can download the full report here.

The lab results are for Generation 4 of EcoPro filters with the Generation 4 available for sales worldwide from March 2021. The results also apply for EcoPro Compact that uses the same 5 stage filtration but with smaller cartridges. Results may vary slightly for older products.

In Malta TAPP Water is distributed locally and you can learn more about the TAPP Water story here and read more about the TAPP Water advanced microfiltration.

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