Optimal Fuel Quality - Reliable Power | Keeping the Lights on

Fuel delivers its best performance when the liquid is not contaminated. Therefore, it is of great importance that the fuel is checked regularly. Are there are bacteria in the tank, or is there perhaps something else going on with your fuel? A common problem is the presence of water in diesel tank. The water mixes with the fuel, which ensures that it will burn less efficiently. In addition, there is a reasonable chance that micro-organism will develop in the tank, forming sediments and other contamination that could clog filters, form deposits on the tip of the injectors arisen which makes for a less than optimal injection. This in turn means that you will not get the optimum performance from your fuel and that more pollutants are being emitted. With the proven method of Njord Filtration you can make sure that the problem of contaminated diesel belongs to the past.

Removing water from diesel tank

If you do not achieve the maxim output from your diesel, it is very important the diesel is analysed. Njord Filtration can you take a bottom sample from your diesel tank, to see if what is causing the problem. You can of course also do it yourself with one of our sampling sets. You could then send your bottom sample to us, and we carry out further analysis. With water in diesel tank it is often clear what the problem is. We can then help you removing water from diesel tank or provide you with the equipment with which you can re-condition your fuel.

No more water in the diesel tank

Once your diesel has been made free of water (water content lower than 70 ppm is best), it is important to keep it that way. There is always water entering your fuel tank with the air coming in through the air vent when your engines consume diesel. It is important not to let that water sit until it is taken out through the pre-filters, because then the chance exists that there will be micro-organism growing in the tank. You should regularly check on water and eliminate it from the tank. There is the option to sign a complete fuel maintenance contract with us, or we can supply you with preventive products and systems that allow you to install an effective fuel maintenance program.

Please contact us to discuss the possibilities.

Problem Solver

Our solution


If there are problems with filters, injectors, pumps or diesel quality in general, it is advisable to take a bottom sample from the tank(s) and have it analysed. Sometime the diesel is so filthy that the conclusion is obvious: the diesel must be cleaned.

We offer a sampling and analysis service as well as sampling sets to take your own samples. These can also be sent to us for analysis, or can be tested for microorganisms with Liqui-Cult.


If contamination of the diesel with water, sediment and/or microorganisms is discovered, it is important to remove the contamination from the tank(s) and to bring the fuel back into optimal condition.

To this end we offer a tank and fuel cleaning service as well as the equipment to recondition the fuel yourself. If we clean the tank and fuel, before and after samples are taken to demonstrate the effect of service provided.


After the contamination has been removed, it is usually best to ensure that it cannot reoccur. With modern diesel, however, the chance of this is relatively high. There are a number of preventative measures, products and systems available for this. The choice for one of these is different for each situation, client and available budget.

We offer sampling services, complete fuel maintenance contracts and installation of preventative products and systems according to the KIWA BRL-K903-08 norm.
There are a number of options for the tanks as well as the engines/burners:


If so desired, the quality of the fuel with regard to water and sediment levels can be measured in-line in order to control the quality or to adjust the filtration system.

Njord provides: