Rajan Wilcox
Reline your diesel fuel tank instead of replacing it to save time and money. Before relining, the tank must be emptied, cleaned, and dried. The cleaning process can be done with a pressure washer, soap, degreaser, or muriatic acid mixed with water. Once the tank is clean and dry, a liquid liner can be poured in and resealed. The tank is then rocked to spread the liner over the interior. The leftover liner is drained, and the tank is left to dry. This process can be completed in less than two weeks and is a more cost-effective solution than replacing the tank.
Characteristics and Values Table for Reline a Diesel Fuel Tank
| Characteristics | Values |
|---|---|
| Reasons to reline a fuel tank | Rust in the tank, shellac buildup, return the tank to its factory condition |
| Fuel tank removal | From motorcycle, car, small engine, or underground |
| Fuel tank preparation | Drain all fuel, sit for 12 hours to evaporate fumes, clean the tank |
| Cleaning methods | Soap, degreaser, pressure washer, sandpaper, water and muriatic acid solution |
| Drying methods | Air-dry for 12 hours, blow-dryer on low for 1-2 hours |
| Reline process | Tape openings, pour liquid tank liner, rock or roll tank, drain excess, dry |
| Advantages of relining | Cost-effective, shorter timeline, minimal business interruption, no environmental testing costs |
| Disadvantages of relining | May not address all issues, potential for future leaks |
| Products used | Water-based cleaner, polysulfide coating, Caswell fuel tank lining kit, TRL Engineering Intanka |
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What You'll Learn
- Drain the diesel fuel tank and let it sit for 12 hours to evaporate any fumes
- Clean the tank with a pressure washer and then manually with sandpaper
- Tape all openings closed except the main fill hole
- Pour in liquid tank liner and rock the tank to ensure an even coating
- Drain excess liner and let the tank air-dry for 12 hours
Drain the diesel fuel tank and let it sit for 12 hours to evaporate any fumes
When relining a diesel fuel tank, the first step is to drain all the fuel from the tank. Once the tank is empty, it should be left for at least 12 hours to allow any remaining fumes to evaporate. This step is crucial for safety reasons, as diesel is highly flammable, and even a small spill can be extremely dangerous.
Diesel fuel is thicker than other fuels, and therefore evaporates at a slower rate. It has a higher flashpoint than other fuels, with a range of 52-82 degrees Celsius. This means that diesel needs to reach a higher temperature before it will evaporate. The vaporization temperature of diesel is approximately 140 degrees Fahrenheit (or 300 degrees Fahrenheit, according to another source), which is significantly higher than that of gasoline, which is -70 degrees Fahrenheit.
Due to the slow evaporation rate of diesel, it is important to allow ample time for the fumes to dissipate before proceeding with the relining process. Leaving the tank to sit for 12 hours ensures that the majority of the fumes will have evaporated, reducing the risk of fire or explosion.
During the 12-hour waiting period, it is important to ensure that the area around the tank is well-ventilated. Opening doors and windows, or using fans, can help speed up the evaporation process and reduce the concentration of fumes.
After 12 hours, the tank should be safe to work on, and the next step of cleaning and preparing the tank for relining can begin.
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Clean the tank with a pressure washer and then manually with sandpaper
To reline a diesel fuel tank, you must first clean it. This can be done using a pressure washer and then manually with sandpaper.
First, ensure the tank is disconnected and released. You should also ensure that the tank has been drained of any fuel and has been sitting for at least 12 hours to evaporate any fumes. Next, use a pressure washer to clean the exterior and interior of the tank. If there is sediment or sludge in the tank, you may need to create a hole to access the interior of the tank for cleaning. You can use a hand pump to suck out any jellied sediment through the drain hole.
After pressure washing, use sandpaper to manually scrub the interior of the tank. This will help to remove any remaining dirt, sludge, or sediment and ensure that the tank is thoroughly cleaned. Take care to sand all interior surfaces, including the corners and edges of the tank. Pay close attention to any areas with rust or shellac buildup, as these areas may require more extensive cleaning and scrubbing.
Once you have finished scrubbing the tank with sandpaper, it is important to remove any remaining residue and debris. You can use a brush or a cloth to wipe down the interior of the tank. After cleaning, the tank should be dried thoroughly. You can use a blow dryer on a low setting to speed up the drying process, or simply allow the tank to air dry for at least 12 hours.
After the tank is completely dry, you can begin the process of relining it. There are several liquid gas liners on the market that can be used to reline your diesel fuel tank. Follow the manufacturer's instructions for the specific product you are using, including the recommended amount of liner to use and the proper drying time.
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Tape all openings closed except the main fill hole
When relining a diesel fuel tank, it is important to ensure that all openings are securely taped and closed off before proceeding with the relining process. This step is crucial to prevent any leakage of the liquid liner and to ensure an even and effective coating.
Begin by thoroughly inspecting the fuel tank and identifying all the openings, including fuel lines, sensors, vent covers, and any other small holes or crevices. Take note of the main fill hole, as this will be the only opening left uncovered.
Using duct tape or any other strong adhesive tape, carefully cover each opening, pressing down firmly to create a tight seal. Pay close attention to the edges and ensure that the tape adheres smoothly to the contours of the fuel tank, leaving no gaps or spaces. This step may require patience and precision, especially when dealing with irregular shapes or curved surfaces.
Once you have securely taped all the openings, take a moment to recheck your work. Ensure that the tape is properly adhered and that there are no visible gaps or potential areas for leakage. This step is crucial to prevent any issues during the relining process.
By taping all the openings closed, you create a controlled environment within the fuel tank, allowing for a more efficient and effective application of the liquid liner. This step also helps to reduce waste and ensures that the liner coats only the desired surfaces.
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Pour in liquid tank liner and rock the tank to ensure an even coating
Reline your diesel fuel tank instead of replacing it to save time and money. Before you begin relining, ensure your tank is clean and dry. After removing the fuel and internal components, clean the tank with a pressure washer. Once the tank is dry, you can reach in with sandpaper and manually remove any remaining residue.
Now, you can begin the relining process. Pour in your liquid tank liner, using the amount recommended for your tank size by the manufacturer. Reseal the fill hole. Rock, but do not shake, your tank to move the liner over the interior. For larger tanks, you may need to roll them on the ground to ensure an even coating. Continue this process for 10 minutes.
After 10 minutes of rocking and rolling, drain the leftover liner from the tank. Remove all the tape from the openings on the tank and set the tank aside to air dry for 12 hours. Do not use a blow dryer, as the force of the air could strip the liner from the interior or cause it to form puddles.
If you’re looking to reline your underground tanks, consider a company like TRL Engineering, which offers a 30-year warranty on its tanks and tank linings.
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Drain excess liner and let the tank air-dry for 12 hours
After you have coated the inside of the diesel fuel tank with a liner, you need to drain the excess. Turn the tank upside down with the drain hole centred on a clean, empty coffee can. Once all the extra liner has drained into the can, seal it with the original lid. Now, the tank must be left to air-dry for at least 12 hours.
It is important to note that you should not use a blow-dryer to speed up the process, as the force of the air could strip the liner from the interior or cause it to form puddles. If you are in a hurry, however, there is an alternative method. You can set a blow-dryer on low and aim it through the main fill line. This will reduce the drying time to one or two hours, depending on the size of the tank.
Before you begin the relining process, it is crucial to ensure that the tank is as clean as possible. This can be done by using a pressure washer and, once the tank is dry, manually removing any remaining residue with sandpaper. It is also important to remove any remaining connections from the tank, such as fuel lines, sensors, or vent covers. You should also cover all openings with duct tape, except for the main fill hole.
Reline diesel fuel tanks for a variety of reasons. These include rust in the tank, shellac buildup from old fuel, or a desire to return the tank to its factory condition. The process of relining a diesel fuel tank is generally more cost-effective and less time-consuming than replacing the tank altogether. It can also help to avoid the closure of a service station, which can result in a loss of customers and income.
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Frequently asked questions
Reline your diesel fuel tank instead of replacing it to save money and time. Reline your tank if you notice rust, shellac buildup, or a desire to return the tank to its factory condition.
Ensure your tank is empty and that it has been left to sit for at least 12 hours to evaporate any fumes. Remove any remaining connections from your tank (fuel lines, sensors, or vent covers). Tape all openings closed except the main fill hole. Mix a cleaning solution of water and muriatic acid in a glass or plastic container (about 1/4 gallon for a small tank, or 1 gallon for a tank with a capacity greater than 4 gallons). Pour the solution into your tank, seal the main fill hole, and rock the tank to ensure the interior is thoroughly coated. Drain the cleaning solution from the tank and remove the tape from all openings. Let the tank air-dry for a minimum of 12 hours.
You will need duct tape, a glass or plastic container, water, muriatic acid, a liquid tank liner, and a blow-dryer.
Pour your liquid tank liner into the tank through the main fill hole, using the amount recommended for your tank size by the manufacturer. Reseal the fill hole and rock the tank to move the liner over the interior. For larger tanks, roll them on the ground to ensure an even coating. Do this for 10 minutes and then drain any excess liner from the tank.
The relining process can be completed in less than two weeks, whereas a full tank replacement can take up to three months.
