Water contamination in fuel storage tanks is a significant issue that can lead to costly maintenance, equipment damage, and operational downtime. Whether you’re storing fuel for a commercial fleet, backup power generators, or industrial applications, ensuring your tanks remain free from moisture is crucial to maintaining the quality and performance of your fuel.
At WA Refuelling, we recognise the importance of keeping your fuel storage tanks in peak condition. In this article, we’ll dive into effective strategies for fuel storage tank water removal, explore how to remove water from both fuel and diesel tanks, and discuss why tackling moisture contamination is critical to preserving your fuel’s quality and your equipment’s reliability.
How Water Gets into Fuel Storage Tanks?
Water can enter fuel storage tanks through various means, often unnoticed until it causes a problem. Some of the most common sources of water contamination include:
- Condensation: When tanks experience temperature fluctuations, condensation forms inside, allowing moisture to accumulate.
- Leaks: Poorly sealed tanks or damaged fittings can allow rainwater or groundwater to seep into the tank.
- Contaminated Fuel: Fuel deliveries can sometimes contain trace amounts of water, especially if proper precautions weren’t taken during transportation or storage.
Diesel fuel is highly susceptible to water contamination due to its ability to absorb moisture from the air. Over time, water can collect at the bottom of storage tanks, leading to a range of problems that affect both the fuel and the equipment using it.
The Dangers of Water in Fuel Storage Tanks
Water contamination in fuel storage tanks can cause numerous issues, especially in long-term storage scenarios. Some of the most common dangers include:
- Corrosion: Water promotes rust and corrosion inside the tank, potentially leading to leaks, structural damage, and contamination of the fuel itself.
- Fuel Degradation: Water reduces the quality of the fuel, making it less efficient. This can lead to incomplete combustion and reduced engine performance.
- Microbial Growth: Diesel tanks with water contamination can foster microbial growth, leading to the formation of sludge and blockages in filters and fuel lines.
- Engine Damage: Water entering the fuel supply can interfere with combustion, causing misfires, stalling, and severe engine damage over time.
- Fuel Freezing: In colder environments, water in fuel tanks can freeze, blocking fuel lines and causing equipment to fail during critical operations.
Addressing water contamination as soon as possible is crucial for preventing these costly problems. Below, we outline several key strategies for fuel storage tank water removal and how to remove water from a diesel fuel tank in Western Australia.
How to Remove Water from Fuel Storage Tanks?
Effective water removal from fuel storage tanks depends on the severity of the contamination and the type of fuel being stored. Here are some proven methods for removing water from both standard and diesel fuel tanks:
1. Draining Water from the Bottom of the Tank
One of the simplest and most effective ways to remove water from a fuel storage tank is by draining it from the bottom. Many storage tanks are equipped with a drain valve, specifically designed to allow water, which settles at the bottom, to be safely removed.
Steps for Draining Water:
- Shut down any equipment drawing fuel from the tank to avoid introducing contaminated fuel.
- Locate the tank’s drain valve.
- Place a container underneath the valve, ensuring it can capture both water and fuel.
- Slowly open the valve and let the water drain out until clear fuel starts to flow.
- Dispose of the contaminated water according to local regulations.
This process should be part of routine maintenance, particularly for tanks exposed to the elements or fluctuating temperatures.
2. Using Water-Absorbing Filters
Water-absorbing filters, or water-separating filters, are specially designed to capture and remove water from fuel as it passes through the filtration system. These filters are ideal for tanks that experience minor water contamination over time.
How to Use Water-Absorbing Filters:
- Install the filter on the fuel line coming from the storage tank.
- As fuel is pumped from the tank, the filter will trap any water particles, ensuring only clean fuel reaches the engine or equipment.
- Replace the filter regularly to maintain its effectiveness.
These filters are particularly useful for preventing small amounts of water from reaching equipment but should be supplemented with other methods if significant contamination is present.
3. Fuel Additives for Water Removal
Fuel additives designed to eliminate water can be a convenient solution for minor water contamination in fuel storage tanks. These additives work by breaking down water molecules and dispersing them throughout the fuel, allowing the water to be safely burned off during combustion.
How to Remove Water from Diesel Fuel Tanks Using Additives:
- Select a water-removal additive designed for your type of fuel.
- Follow the manufacturer’s instructions for dosage based on your tank’s fuel capacity.
- Pour the additive directly into the tank and allow it to mix with the fuel.
- Run the equipment or engine to burn off the dispersed water.
While additives can be a quick fix, they are most effective when used for small amounts of water. Heavily contaminated tanks may require more robust solutions.
4. Fuel Polishing Systems
For large storage tanks or those with significant water contamination, a fuel polishing system is an effective solution. Fuel polishing is a process that filters and cleans the fuel within the tank, removing water and other contaminants without the need for draining the tank.
Benefits of Fuel Polishing:
- Removes both water and particulate matter.
- Extends the life and quality of stored fuel.
- Can be performed without taking the tank out of service.
Fuel polishing is a preferred option for industries that rely on large quantities of stored fuel, such as backup generators for hospitals or construction sites.
5. Vacuum Extraction
Vacuum extraction is another method commonly used for large tanks with significant water contamination. A vacuum pump is used to remove water from the bottom of the tank without disturbing the fuel.
Steps for Vacuum Extraction:
- A hose is inserted into the tank, reaching the water at the bottom.
- The vacuum pump is activated to extract the water.
- The water is collected and disposed of properly.
This method is often used by professionals in large fuel storage facilities and ensures that minimal fuel is lost during the extraction process.
Preventing Water Contamination in Fuel Storage Tanks
While removing water from fuel storage tanks is essential, prevention is always better. Here are some ways to prevent water contamination:
- Regular Tank Inspections: Regular inspections allow you to catch signs of water contamination early. Look for signs of leaks, rust, or condensation inside the tank and address them promptly.
- Proper Sealing and Ventilation: Ensure that all tank openings are properly sealed and that ventilation systems prevent moisture from entering. Installing a desiccant breather can help reduce the amount of moisture that enters the tank through air vents.
- Temperature Control: If possible, store fuel tanks in temperature-controlled environments. Sudden changes in temperature can lead to condensation forming inside the tank, increasing the risk of water contamination.
- Fuel Tank Rentals: Opting for rental solutions can help businesses use tanks that are well-maintained, reducing the risk of contamination.
Protect Your Fuel – Contact WA Refuelling Today!
Water contamination in fuel storage tanks can have serious consequences, from fuel degradation to engine damage. By implementing effective water removal strategies—such as draining, using additives, or employing fuel polishing systems—you can protect your stored fuel and the equipment it powers. Regular fuel tank maintenance, inspections, and preventative measures are essential to keeping your fuel tanks free of water.
If you need professional assistance with fuel tank water removal, WA Refuelling offers expert solutions in Western Australia to help you maintain the quality and longevity of your fuel storage tanks. Contact us today on (08) 9359 1988 to chat to our team about your requirements.