fuel tank

What is the Importance of Having Clean Self Bunded Diesel Fuel Tank?

Failed self bunded diesel fuel tank can be very costly over the long term because it will eventually cause you to replace your fuel pump. If your car right now gets you 20 miles to the gallon, doing the math here this means that there’d be around 5,000 that will go through your tank and that is in about 100,000 miles.  

It is wrong to think that this is okay because, during that time, foreign particles are likely to find their way into your tanks such as debris, rust, and sediment. Removing them is critical, though. One available option for this kind of scenario is to have your tank steam-cleaned.

diesel fuel tank


Reputable radiator shops can carry out that kind of service if they have one on offer. What they will do first is recondition your bunded diesel fuel tank and see to it that there are no leaks. One that you will find hard to spot on your own. Ultimately, the end goal you should have in cleaning your fuel tank is the restoration of the environment inside your fuel tank, back to the same state and condition it was in before putting fuel in before driving off the assembly line.  

If you are among the thousands of people who are under the impression that your new strainer or sock on your fuel pump is enough to catch out all the bad stuff, then all of you are dead wrong on this. It is typical for a strainer or sock to be designed for catching contaminates, but they are highly effective only in particles that are about 50-100 microns in diameter. For comparison purposes just so you have a how tiny they are, let us compare them to the human hair which is about 40 microns. Due to the small surface area that they usually come in, the sock consequently comes only with a limited capacity.  

Make it a habit to have a new filter installed. It may sound like a pretty simple thing to do, but most often than not this is forgotten by many. As time runs on your filter, it gets older and this could hinder flow, rendering your pump to work double time. This makes your pump forcibly run even on a higher temperature. Sooner or later, this would cause it to fail.  

The best practice that you can observe here is to filter your filter first before you even try to put them into your self bunded diesel fuel tank.

If there is a full meltdown for your fuel pump, there is a good possibility that pieces and fragments of your old pump remain in the removed fuel. So, therefore, it makes sense that you filter your fuel first before you put them back in your tank. There are a handful of fuel caddies that come with built-in filters. You may want to check them out for this.  

So, what other things you need to look out for that can kill your new fuel tank pump? Bad grounds and connections may also bring about the same thing to your pump. For this, you will need to check out your connector and try to look for any visible signs of thermal damage. They indicate that there has been a voltage drop before. It is also a positive sign that there has been a circuit with high resistance. 

Do not allow yourself to get into the habit of making assumptions that it is always your old pump that brought about the thermal damage that you are seeing. Bad circuits and grounds are about to stay and remain with the vehicle, inducing a measurable amount of damage to your new pump.  

It is also of prime importance that you assess the EVAP system. Most vehicles would require 1 drive cycle for this and only after that will it allow you to set up an EVAP code. A leak brought about by a disturbing line may keep it from setting a code while the initial test drive is ongoing. It may come after some time that your vehicle remained sitting for a while or at that point when its temperature has subsided.  

Silvan Tanks and the Importance of Proper Maintenance

Much like any other fuel containment systems, silvan tanks need proper care and maintenance, too.

The composition of modern fuels we have today necessitates that we store them inside fuel containment systems that are properly cleaned and well maintained. Fuel integrity is an important factor to have if you want to maintain your fuel containment system’s reliability. 

However, the downside here is that when you have your fuel stored for an extended period of time, it runs the risk of developing sediments along the way. Random fuel particles may also form and get deposited at the bottom part of the tank, they are more popularly known as sludge. Water and other contaminants may also accumulate, and if that happens, it will require you to have fuel polishing. If you leave such contaminants untreated for far too long a time, they will eventually cause mechanical and engine failures.  

Below are some of the points that will help us underscore why proper maintenance practices for your silvan tanks is extremely important

mechanical engineering

Use Only Clean Fuel to New Engines 

The technology that is working behind a fuel injection system that you see in vehicle engines undergo constant improvements. By this measure, these vehicles become fuel-efficient. The use of new injectors makes way for more efficient and faster combustion, which also leads to the creation of fine mists. 

New fuel injections clog more easily, they are highly precise and need cleaner fuels. It is very important to keep fuel injectors clean because that will significantly help in keeping the engine free from damage. Clean and well-maintained fuel tanks translate to cleaner fuel. And cleaner fuel means to say that you have much cleaner fuel injectors.  

BioFuels Need Monitoring

A new breed of biofuels is all coming into play. Biodiesels are also slowly gaining some foothold in the marketplace. Compared to traditional liquid fuels that we are accustomed to having, these biofuels burn cleaner and a lot more efficient.  

But there is one drawback here you need to be made aware of as early as now. When it comes to this type of fuel, water is a bigger concern that you will need to deal with. It can easily get dissolved in ethanol than when it is in petrol. Therefore, it is safe to say that ethanol-blended fuels are likely to hold greater amounts of water than suspension type. 

Biofuels also tend to absorb more water from the air. The best way to safeguard your liquid fuel such kinds of concerns is to ensure that you are employing proper maintenance practices to your fuel containment systems. This way your stored high-value liquid will remain clean and stable.  

We must have in place proper risk management measures. Everyone assigned or delegated to work around a piece of equipment or within an arm’s reach to a fuel containment system should be properly trained in the proper identification and elimination of risks. In addition to this, they ought to know and must be well versed in conducting routine inspections, dispensing fuel, and how to properly operate pump shutoff mechanisms.  

How to Prevent Microbial Growth in Poly Diesel Fuel Tanks?

Fuel Refill

If the environmental conditions are right, poly diesel fuel tanks and many other similar liquid containment systems are very susceptible to aerobic and anaerobic bacterial growth. If infected fuel tanks are left on their own and they remain untreated for a long time, your stored liquid fuel runs the risk of developing muck.

Their presence of slime inside your fuel tank system will put them in harm’s way because they can spread and will not take a long time for them to reach your tank’s filter and strainer systems. They would eventually cause them to get clogged. Aside from clogging, the development of dirty slime in your stored high-value liquid fuel tank will induce your tank system to corrode fast. You will also observe that your stored fuel will spoil prematurely.

Testing Fuel for Microbial Contamination

What Triggers Microbial Growth in Poly Diesel Fuel Tanks? 

Contamination by microbes inside your liquid fuel tank is normally triggered by bacterial and fungal growth. Both fungi and bacteria thrive on your stored fuel as their primary food source. They also seem to prefer diesel fuel and kerosene over gasoline. Gasoline may be detrimental to fungi and bacteria because they contain lead, which somehow acts as a poison to them.  

Soil is the natural habitat for both fungi and bacteria, and for that reason, they are easily carried away by air. Due to this reason, everything around us is a possible carrier of bacteria and fungi. Liquid fuels are no exemption here, they also carry a certain amount of bacteria and fungi. While their spores are harmless in their natural state, they will only start to bring about complications when they start to germinate. 

What Promotes Microbial Growth in Fuel Tanks? 

Three factors are usually seen as a catalyst for microbial growth in liquid fuel. Coming in the lead here is the presence of water, and in second place would be the food source (in this case, the food source is your liquid fuel). Temperature is also another important element for microbial growth, which should run between 10C (50F) -40C (104F).

Water condensation that occurs inside lightweight poly diesel fuel tanks can also serve as a stimulus for microbial growth and contamination inside your high-value liquid containment system. Since water and oil in fuel will never mix with no matter what, microbes tend to grow and propagate instead of the fuel-water interface. Normally, they would form at the bottom part of the tank. 

Microbial growth in liquid fuel is comparable to the appearance of “chocolate mousse”. In extreme cases of contamination, one will see large mats of muck and slime developing and blocking the tank’s filter systems. Clad or Cladosporium Resinae is one species of fungus that can flourish in liquid fuel. The aviation industry was the first to experience how ravaging and damaging this fungus species can be. It wrought damage of unimaginable proportions in the aviation industry first before authorities managed to find a solution to control the problem.

Poly Diesel Fuel Tanks

Ways to Prevent Microbial Contamination in Liquid Fuel Tanks

There is no other better way to tackle this kind of problem than by preventing its outset. Basically, by just keeping your fuel tank clean all the time you’d be able to keep microbial contamination at bay.

a) Fuel system maintenance

b) Fuel microbe monitoring program 

c) Fuel treatment

Fuel Treatment

The best course of action to prevent microbial growth in liquid fuel is to treat the bottom part of the tank. If you determine there is biomass or sludge present in the liquid fuel, it’s removal would be necessary. The use of diesel fuel biocide is also highly recommended here. In choosing a product for this purpose, you need to take into account several factors including the compatibility of the product with your system components, water or fuel solubility, compatibility with the fuel at hand or with any other derivatives, the rate in which you want to exterminate the microbes. And finally, you will also need to take into account various regulatory and industry approvals.