Aquafighter® FAQs

This depends on the largest opening to install Aquafighter and the size of your tank:

  • Check the opening size of the tank first, and then the capacity of the tank.
  • Choose an Aquafighter that suits your maintenance schedules.
  • The period shown is the maximum time that the Aquafighter should be left in place between changes.
  • Ensure you check periodically that the Aquafighter has not become saturated, particularly after first time use.
  • Avoid leaving in place when fuel tank is in motion, particularly where the Aquafighter might block the fuel intake.
  • These are estimates and needs could differ based on fuel quality, tank conditions and fuel quantity.

We recommend that you install Aquafighter in a clean tank. Whether it is a new tank or a recently cleaned tank, Aquafighter will sit at the bottom of the tank and remove all water that enters your tank until it is full. Whether this is water coming from the fuel delivery or the vent pipe, or even from a leak in the tank; Aquafighter has the power to get water to release from fuel molecules to keep your tank water-free and your fuel at less than 65ppm water; which is effectively zero (Not to mention far better than spec diesel).

While Aquafighter will work in tanks that are not completely clean, dirty tanks can cover and clog the Aquafighter fabric membrane and not allow the water to enter into the capture chamber. Also, Aquafighter is not magic, so it will not make the dirt and bacteria that is in your tank miraculously disappear. Multiple treatments may be needed.

In summary; start with a clean tank and Aquafighter will keep your tank clean.

However, Aquafighter or not, you should keep your tank clean because the contamination in your tank will get into your machines. And cleaning your fuel tank can cost you a lot of money. But on the bright side, it does make some big corporations huge money.

Yes, Aquafighter works the same way with petrol, but should not be used with ethanol containing fuels.

The Aquafighter powder that is inside of the specially engineered fabric membrane must come in contact with the water ingress and the fuel/water mixture to cause the water to release from the fuel and to capture the water inside the membrane. If there is a lot of dirt and bacteria build-up in the tank, the Aquafighter can become buried or the dirt and bacteria can cover the fabric making it difficult or impossible for the liquid in the tank to come in contact with the active Aquafighter. In addition; whether using Aquafighter or not, cleaning a contaminated tank is a smart idea. Whatever water, dirt and bacteria that is in your tank will find its way into your machines, equipment and filters. Filter replacement, tank cleaning, additives, repairs and labor costs are so high because of these reasons. Clean your tank, install Aquafighter and enjoy simple tank maintenance and great fuel quality from now on.

Check out the installation guide

Firstly, Aquafighter prevents the very thing that polishing machines are designed to fix. But Aquafighter is much more effective, much less expensive and doesn’t wait for disaster to take action. Secondly, Aquafighter is able to cause the separation of water molecules that are chemically bonded to fuel molecules immediately upon contact. This is what makes Aquafighter so efficient. In contrast, fuel polishing machines use force whether through filters or a centrifuge to try to physically extract the water away from the fuel. This accounts for the lack of efficiency in fuel polishing. Aquafighter marks the first time that it is possible to remove all types of water; including bound, emulsified, suspended and free water; from your fuel directly in the tank. Expensive fuel polishing machines and fuel polishing services must first remove the fuel from the tank to clean it and even then they cannot remove water at 100% efficiency to under 200ppm. Aquafighter removes water in the tank with 100% efficiency to less than 200ppm, with an average result of 65ppm. We agree, pretty amazing!

In its first 2 years, Aquafighter was used exclusively with a fuel company in Europe (one of the biggest fuel companies in the world). In this time, Aquafighter was used to remove water from more than 1,700,000 liters of “water-logged” fuel that would normally cost more than .60 USD per liter to dispose of. (Since then we have restored an additional 1,500,000 liters of diesel for their other stations.) Rather than dispose of this fuel, Aquafighter saved it and it was returned to the fuel station as better-than-spec diesel. Huge money gained! For every delivery of fuel back to the station there was a laboratory test performed to determine water content, small particle content and fuel quality. In every one of these critical tests over this two year period, Aquafighter provided perfect fuel at less than 65ppm 100% of the time.

In addition; Aquafighter was installed into these same fuel station tanks after fully cleaned and at the 6 month check-up, the fuel at the very bottom of every single tank was clear and bright. Upon laboratory testing a result of 60ppm was obtained. We have also conducted testing at the renowned Saybolt Laboratories in Sweden demonstrating and average total water content of 64ppm, with one sample at 40ppm. (All tests were performed on B7 fuels with an out of specification water content, initially averaging 363ppm.)

Aquafighter was first developed in 2015 and since then more than 7,000 laboratory tests were performed that showed Aquafighter removes bound water to less than 65ppm in every single tested sample. In addition, the first adopter of Aquafighter was a major fuel company in Europe. In the first 2 Years with this fuel company more than 1,700,000 liters of bound water-filled fuel was recovered, treated with Aquafighter and then resold at retail. This is massive costs savings added to massive sales gains as this prevented paying large sums to waste bad fuel and allowed for the formerly bad fuel to be made retail-sellable again. Also, in the reporting period between September 2019 and September 2020 at the 170 fuel stations that a major fuel maintenance operator directly maintains using Aquafighter; there were a total of zero fuel complaints and a 50% reduction in pump filter usage. That is 100% success and makes using Aquafighter a net profit for fuel stations on replacement filter saving alone.

Aquafighter will not remove large pieces of dirt, it will not clean the bacteria that is currently in your tank and it will not repair already degraded diesel fuel. However, Aquafighter will remove 100% of water to an amazing 65ppm and remove approximately 90% of small particles from your fuel. It should be noted that once Aquafighter is in your tank, it will stop bacteria from growing further and prevent fuel from degrading quickly. We recommend that you clean your tank if it is dirty and that you use Aquafighter consistently so that you never have to deal with the mess that diesel bacteria creates. Don’t make a mess for yourself.

Aquafighter is a cure for water in your tank and your fuel system as it removes water as it enters your tank and prevents it from causing any damage or growing any mold/bacteria/microbes. Chemicals and other absorbents only treat the bad things caused by the presence of water in your tank, your fuel system and your engine. Also, Aquafighter is completely safe to handle and contains no harsh or dangerous chemicals. Many additives, chemicals and absorbents contain substances that are terrible for the environment, hazardous to touch and some even cause cancer, and we don’t advocate putting our customers or their colleagues in harm’s way. Fuel filters last much longer when Aquafighter is used.

A water separator does not remove any water from your tank and it only removes most of the free water after it enters your fuel system. In fact, a water separator is not made to remove bound/emulsified water and almost never will an engine manufacturer cover water damage on a warranty. It is the customer’s responsibility to protect their own tank and their own engine from bound water. But make no mistake; the manufacturers would love to sell you some OEM replacement parts.

Aquafighter is the most convenient, cleanest, most environmentally friendly and the fastest way to remove free water. However, in some cases we recommend that you either drain this water or suck it out because this doesn’t cost money and doesn’t take much time. But if circumstances dictate, Aquafighter will capture the free water in most tanks in less than 1 hour and virtually mess free.

There are many products on the market that go to the bottom of the tank and just absorb free water. However, those products will only remove free water that has already fallen to the bottom of the tank. These products will also take at least 24 hours to absorb free water, they cannot remove bound water effectively, they are often not 100% effective at absorbing free water and they often contain poisonous chemicals.

It depends on the Aquafighter product. We have Aquafighters that can capture and remove up to 90 liters of water.

You can do any of several of the following:

  1. Control the tank with the Aquafighter Dipstick Indicator through the dipstick pipe to detect the presence of bound water. This is the easiest and most accurate method and will let you know if your main Aquafighter is full.
  2. Monitor the water separator for the first traces of water.
  3. Pull up the Aquafighter from the bottom of the tank to visually inspect.
  4. Use a dipstick refill as a bound water check.

Under normal circumstances and with the correct size Aquafighter filter for your tank, your Aquafighter can keep your tank completely free of water for at least 1 year. However, there are events such as bad fuel, high humidity and leaks that could affect this. In cases where you have excessive amounts of water in your tank; Aquafighter will clear the stated amount of water; saving expensive damage, downtime, cleaning and repairs.

Aquafighter should be disposed of in “special waste”, at your local auto parts store, or in any place oil filters and other similar products are disposed.

No. In fact, Aquafighter will restore your fuel to well within the specification requirement for water content as produced at the refinery.

No. The Aquafighter fabric membrane is designed to resist expansion. This is designed so that there is zero risk of removing it from the tank when it is full. As long as you follow the Aquafighter guidelines for proper access hole size you can leave Aquafighter in your tank for many years and still be able to retrieve it easily through the same hole.

No. Unless you deliberately cut it, alter it or violently yank it across a knife sharp edge; the Aquafighter will not break. The Aquafighter fabric is strong and durable and will keep the gel enclosed inside.

Aquafighter is the absolute most effective and most affordable solution to keep your diesel tank completely water-free. In almost all cases, it is the only solution to keep your tank free from all water, including bound water, at all times.

Bound water is water that is attached to molecules of diesel fuel that do not fall to the bottom of the tank and will not be separated by a water separator. With even 1% of bio-diesel added to petroleum diesel, bound water is absorbed into the fuel at a much higher rate and becomes a significantly bigger threat to your engine and fuel system. You can identify bound water as it makes the fuel cloudy and difficult to see through.

Biodiesel has up to 25 times higher moisture saturation than petroleum diesel. With the introduction of any amount of biofuel into diesel, bound water becomes much more prevalent. In fact, biofuel significantly raises the saturation point of fuel even with a small percentage of added biofuel. In summary: More bio-fuel content = More bound water content.

Bound water is water and does all the damage that water typically does to equipment. Over time it can induce corrosion, it can damage metal parts in your engine and fuel system, it can cause your engine to become inefficient, it could stall engines, it can cause your fuel to degrade faster, and it can induce microbial contamination to develop in your tank and fuel system.

Since bound water cannot be simply drained from the tank, there are really only 3 options:

  • You can hire a fuel polishing company who will bring a truck out to your tank, pump your bad fuel and your good fuel out of your tank, process your fuel through a centrifuge and/or run it through a filter or 2 or 3 or maybe more and then pump the polished fuel back into your dirty tank. Not an awesome option, but we understand if you want to subsidize the mortgage of your fuel polisher’s summer house.
  • You can just run the high water-content fuel through your engine and wish for the best. This one is an exciting game of Russian roulette for engine.
  • You can keep Aquafighter® active in your tank at all times and never have to worry about water ever again. This seems like the perfect choice for everyone.

Absolutely.  Water, both bound and free provide the oxygen that starts bacteria colonies and fuels its rapid growth. You can see a common discovery in fuel filters and fuel tanks in the pictures below. Keeping Aquafighter active in your tank at all times will prevent this bacteria mess from happening in your tank and wasting your filters.

Test your fuel system periodically with FUELSTAT test kits for instant indication of microbial contamination

Aquafighter removes all water from the tank so there is no oxygen for bacteria to multiply and grow.

Test your fuel system periodically with FUELSTAT test kits for instant indication of microbial contamination

Aquafighter is a “Step-1 Solution” because it completely removes water at the first step in the fuel delivery process, which is in your tank. As water is introduced into your fuel tank, Aquafighter neutralizes it. In fact; water will be eliminated before it can cause damage to your tank, pump, fuel system or engine.

Aquafighter is scientifically proven in a lab, in vehicle fuel tanks as well as in fuel station tanks. Aquafighter will remove all water, purifying the diesel fuel to better-than-spec. However; if your fuel has already degraded, Aquafighter nor any other machine or magic potion is able to restore this fuel. Your best option is to get Aquafighter in your tank immediately and give yourself the absolute best fuel protection.

Yes, of course. But a significant presence of dirt and bacteria can block the Aquafighter fabric, preventing the Aquafighter powder from having full contact with your fuel. It is always best to operate with a clean tank and Aquafighter will help keep your tank clean and fuel pure as long as you keep it active in your tank.

Microbial Contamination (bacteria and Diesel bug):

Microbial contamination is a very serious issue for all users of middle distillate fuels and diesels. A combination of fungi, bacteria & yeasts can feed on the fuel and grow into clumps and films that can cause issues such as; blocked filters, contaminated water scavenge systems, Fuel probe malfunctions & Blocked injectors. See our Microbial Contamination pages to find out more and contact us if you have any queries or concerns about your fuel systems.

Micro-organisms are present wherever sources of food and water exist together. In a fuel system fuel provides the food source, whilst water comes from the fuel itself as well as from external sources like atmospheric humidity, cooling systems and the moisture attractant, (hygroscopic) nature of biofuel.

Water is heavier than fuel and so is found at the bottom of tanks &stores. Microbes tend to live at the water fuel interface, living in the water and feeding off the fuel. They also seek out low flow areas of fuel system and are known to over time to actively create these conditions by ‘digging in’ to structure of tanks and lines, resulting in corrosion and pitting. Heavy contamination can block filters and stop engines too.

Governments worldwide are taking measures to reduce emissions and eke out dwindling fossil fuel stocks. There is also an imperative to reduce the economic risk of and politically unacceptable dependence on fossils fuels and their suppliers. The emissions drive has led to sulphur, seen as the main culprit in the emissions issue, being targeted for reduction. Adding biofuels to fossil fuels is seen as the best current solution to eking out fuel stocks and spreading risk.

Sulphur is a lubricant and so cutting its levels increases fuel system wear and reduces efficiency. Older engines in particular suffer from its reduction. Sulphur also is a bacteria-stat. This means that it interferes with the lifecycle of bugs and slows down their ability to colonise the fuel system.