Katerina Swanson
Draining a pontoon boat fuel tank without removing it is a task that many boat owners choose to do themselves, often to save money. There are several methods to do this, including using a pump, a hose, or a large-capacity syringe. Some people also use additives to stabilise the fuel, such as Sea Foam, or they simply run the fuel down and then refill the tank.
| Characteristics | Values |
|---|---|
| Fuel tank draining tools | Fuel pump, barbs, fuel hose, duplex wire, alligator clips, syringe, tubing, bulb, duct tape, bucket, electric fuel pump, jumper cables, heater hose, duct tape, tractor |
| Fuel tank draining process | Disconnect the fuel hose, shut off the fuel line, run the outboard dry, place the vessel for receiving the fuel at a lower level, put the end of the fuel line in the receiving vessel, pump the primer bulb, attach the alligator clips to the battery posts, disconnect the battery, reconnect the boat's fuel line |
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What You'll Learn
Use a fuel pump to drain the tank
Using a fuel pump is an effective way to drain a pontoon boat's fuel tank without removing it. This method is often preferred by boat owners as it saves them the cost of paying a professional to do it. It is also a relatively straightforward process, which can be completed in under an hour.
To begin, you will need a fuel pump, such as the Seachoice fuel pump, barbs, and a fuel hose. These components can be used to create a DIY fuel-tank draining kit. It is important to also have a duplex wire, alligator clips, and a container to collect the fuel.
Once you have assembled the necessary equipment, follow these steps:
- Shut off the fuel line to the outboard.
- Place the container for receiving the fuel beside the boat, ensuring it is at a lower level.
- Connect the pump to the fuel line leading to the boat's fuel tank. Bob Hanko, a marina operator, recommends disconnecting the line from the "upstream" end, where it attaches to the primer bulb.
- Attach the alligator clips to the battery posts to power the pump.
- Stand by as the fuel is sucked out of the boat's fuel tank and transferred into the container.
- The Seachoice pump can move around 33 gallons of fuel per hour, so the process is usually quick, taking less than an hour.
- When the pump runs dry, disconnect the battery and reconnect the boat's fuel line to the outboard.
- Store the pump and battery in a safe place, and properly dispose of the drained fuel.
It is important to note that safety should be a priority when working with fuel. Ensure that any potential sources of ignition, such as sparks, are kept away from the fuel transfer operation. Additionally, if you choose to prime the siphon by mouth, be extremely cautious to avoid ingesting any fuel.
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Siphon the fuel out with a hose
To siphon the fuel out of your pontoon boat's fuel tank with a hose, you will need a hose that is long enough to reach from the tank to a gas container on the ground. You will also need basic safety gear, such as rubber gloves and goggles, as fuel is a skin irritant and the fumes may be bothersome.
First, locate the fuel sender or level meter in the tank. This is usually held in place by five screws. Undo these screws and remove the sender unit. Then, take your hose and feed it into the tank through the hole where the sender unit was. Make sure the hose is long enough to reach the bottom of the tank. Place the other end of the hose into a gas container that is large enough to capture all of the fuel. If your hose is not long enough, you can try routing it through the bilge drain.
If you are using a manual pump, submerge the suction pump in the gas tank and start operating it until the fuel starts flowing through the hose. The tank should drain within a few minutes, depending on how much fuel is in it. If you are using an electric pump, attach the pump to the hose and submerge the suction pump into the tank. Place the other end of the hose in your container and turn on the pump.
If your boat is on a trailer, you can pull the gas line that goes to the engine and start a siphon without the need for a pump. Simply place one end of the hose in the tank and the other end in a gas container on the ground. Alternatively, you can use a spare fuel line bulb with long hoses on each end. Place the input end in the tank and the output end in your gas container, then pump the bulb to start the siphon.
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Disconnect the fuel hose from the engine
Disconnecting the fuel hose from the engine is a crucial step in draining a pontoon boat's fuel tank without removing it. This process can be done in several ways, and it is important to follow safety precautions to avoid any mishaps. Here is a detailed guide on how to do it:
Before beginning, ensure you have the necessary tools and safety equipment. This includes items such as a fuel pump, alligator clips, wire, a screwdriver or spanner, and a suitable container for the fuel. It is also recommended to have a fire extinguisher nearby as an extra precaution.
Now, let's get started with the steps:
- Shut off the fuel line to the engine: Before disconnecting the fuel hose, it is crucial to shut off the fuel supply to the engine. This will prevent any fuel spillage or leakage during the disconnection process.
- Prepare the vessel for receiving the fuel: Place a suitable container, such as a bucket or gas can, on the ground near the boat. This container will be used to collect the fuel that is drained from the tank. Ensure that the container is large enough to hold the expected amount of fuel and is securely placed to avoid any accidental spills.
- Disconnect the fuel hose: Using a screwdriver or spanner, loosen and remove the screws or clamps that hold the fuel hose to the engine. Be cautious and gentle during this step to avoid damaging the hose or the engine. Slowly pull the fuel hose away from the engine, creating enough slack to work with.
- Attach the fuel pump: Obtain a fuel pump, such as a 12V electric fuel pump, and connect it to the fuel hose. Ensure that the pump is securely attached to the hose to prevent any leaks.
- Start the siphoning process: Place the other end of the fuel hose into the container placed on the ground. If using a manual method, you may need to suck on the hose to start the siphoning action. Alternatively, if using a fuel pump, turn it on to begin transferring the fuel from the tank into the container.
- Monitor the process: Keep a close eye on the fuel transfer process to ensure it proceeds smoothly and safely. Ensure that the fuel is being drained effectively and that there are no leaks or spills.
- Disconnect the battery: Once the fuel pump runs dry, disconnect the battery to prevent any sparks or accidental activation of the pump.
By following these steps, you can safely and effectively disconnect the fuel hose from the engine and drain the fuel tank of your pontoon boat without removing it. Remember to exercise caution and refer to your boat's manual for any specific instructions or variations that may apply to your vessel.
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Drain fuel into a bucket
To drain fuel from a pontoon boat fuel tank without removing it, you can use a manual or electric pump to siphon the fuel out. Here's a step-by-step guide on how to do it:
- Place a bucket or suitable container on the ground next to the boat, ensuring it is lower than the boat's fuel tank.
- Obtain a manual or electric pump, such as a Seachoice fuel pump, and a fuel hose.
- Disconnect the fuel line from the motor or the “upstream” end where it attaches to the primer bulb.
- Attach the pump to the fuel line leading to the boat's fuel tank.
- Submerge the suction pump or hose into the fuel tank, ensuring it reaches the bottom of the tank.
- Put the other end of the hose into the bucket or container.
- If using a manual pump, operate it until fuel starts flowing through the hose. If using an electric pump, connect the wires to the boat battery and turn it on.
- Stand by and monitor the fuel transfer process.
- Once the pump runs dry, disconnect the battery and reconnect the boat's fuel line to the outboard.
- Store the pump and battery in a safe place, away from any sparks or open flames.
It is important to note that you should always take the necessary safety precautions when working with fuel. Ensure proper ventilation, avoid open flames or sparks, and wear protective gear, such as gloves and eye protection. Additionally, be cautious when handling the fuel and keep it away from children and pets.
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Use a small electric pump and hose to suck out fuel
Using a small electric pump and hose to drain your pontoon boat's fuel tank without removing it is a convenient and efficient method. Here is a step-by-step guide to help you through the process:
Firstly, you will need to gather the necessary equipment. For this method, you will require a small electric fuel pump, a hose that is long enough to reach the bottom of the tank, and some fuel containers to collect the drained fuel. You may also want to wear protective gear, such as gloves and eye protection, to ensure your safety during the process.
Once you have the required equipment, you can begin by connecting the pump to the power source. This usually involves attaching the pump to your boat's battery using alligator clips. Make sure to follow the manufacturer's instructions for your specific pump model to ensure a correct and safe connection.
With the pump connected, you can now attach the hose to the pump. Ensure that the hose is securely attached to the pump's inlet to avoid any leaks. Then, carefully feed the hose into the fuel tank through the filler hose or the fuel sender hole. You may need to remove the fuel sending unit or the fuel level sensor to access the tank and ensure the hose reaches the bottom for a complete drain.
Now, place your fuel containers or a large bucket on the ground, ensuring they are at a lower level than the tank to facilitate the siphoning process. Place the other end of the hose into the containers or bucket. If your pump has an outflow hose, attach it to the pump's outflow barb and then place the end into your fuel container.
Before turning on the pump, ensure that all connections are secure and that the hose is properly positioned in the tank and the container. Once you are satisfied, turn on the pump and let it run until the tank is empty. Depending on the size of your tank and the capacity of the pump, this process can take less than an hour.
When the pump runs dry, disconnect the battery and pump, and carefully remove the hose from the tank. Be cautious when handling the hose as it will contain fuel. Now, you can securely store the drained fuel in an appropriate container for disposal or reuse. Remember to properly dispose of the old fuel at your local hazardous waste disposal center.
By following these steps, you can effectively drain your pontoon boat's fuel tank using a small electric pump and hose without the need to remove the tank. This method can save you time and money, but always exercise caution when working with fuel to avoid any accidents or mishaps.
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Frequently asked questions
The cheapest way to drain a pontoon boat fuel tank without removing it is to use a garden hose. Pinch the hose closed, blow through it, and then place the end of the hose in a gas can. Keep the hose end lower than the tank and look out for the fuel.
The quickest way to drain a pontoon boat fuel tank without removing it is to use a fuel pump. First, shut off the fuel line to the outboard. Then, attach the pump to the fuel line leading to the boat’s fuel tank. Place a vessel for receiving the fuel beside the boat at a lower level and put the end of the fuel line in the receiving vessel. Finally, attach the alligator clips to the battery posts to power the pump.
The best method to drain a pontoon boat fuel tank without removing it is to use a fuel pump. This method is preferred over others because it is quick, efficient, and does not require ingesting any fuel.
