
The OpenBlocks Tank is a block from the OpenBlocks mod that acts as a dynamic multiblock fluid storage solution. It can be shaped and sized in any way and can hold 16 buckets of any liquid. While these tanks can be used to store fuel, they don't auto-eject fluids, and users have reported difficulties with emptying them. This article will explore methods to disable OpenBlocks tanks as a fuel source, including workarounds for common issues, and alternative solutions for effective fuel management in the Feed The Beast game.
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What You'll Learn

Use a wooden fluid pipe between the tank and void pipe
If you're looking to disable an OpenBlocks tank as a fuel source, one way to do it is by using a wooden fluid pipe between the tank and a void pipe. This method will help you pull the fuel out of the tank.
Wooden fluid pipes are used to extract liquids from a machine or liquid storage unit, such as a tank. They can be powered by a Redstone Engine or other power sources to pull the liquid from the tank. It's important to note that a wooden fluid pipe is not needed to extract fluids from a pump, as liquid is automatically pulled into the piping network. Additionally, wooden fluid pipes cannot connect to each other; you'll need to use a normal cobblestone or gold fluid pipe for that.
When using a wooden fluid pipe, you can extract any buildcraft-compatible liquids from a buildcraft-compatible liquid storage container. This includes liquids like water, lava, oil, or fuel. The pipe will hold the liquid even if it's not connected to anything else. The direction of extraction can be controlled by using a wrench, and the pipe can be easily removed with an empty hand.
Compared to other pipes, wooden fluid pipes have a lower liquid extraction capacity. For example, emerald fluid pipes can drain four times more liquid at once than wooden fluid pipes. Iron fluid pipes, on the other hand, have up to five inputs and one output, allowing you to send all incoming liquids in a single direction.
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Power the pipe with a redstone engine or other power source
To disable an OpenBlocks tank as a fuel source, you can place a wooden fluid pipe between the tank and the void pipe. This will require a power source to pull the water from the tank. One option is to power the pipe with a redstone engine. Redstone engines are the cheapest and most basic type of BuildCraft engine, providing the least amount of power at 1MJ/s or 0.05MJ/t. They are commonly used for powering wooden pipes to transport items and BuildCraft pumps.
Redstone engines can be powered by a direct redstone signal, for example, from levers. They can be turned on and off using a redstone signal and require an active signal to activate. They have four different power outputs, depending on how hot they are. The amount of energy stored is indicated by the colour of the piston: blue for <25% capacity, green for <50% capacity, yellow for <75%, and red for <100%.%
Redstone engines will not output to conductive pipes, but they can be daisy-chained with other redstone engines. They can also be used to power a Magma Crucible to produce lava for a Stirling or Combustion Engine.
It is important to note that redstone engines will explode when left running on a red stage for too long, so they should be turned off when not in use.
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Use a sponge on a stick to remove liquids
To disable OpenBlocks tanks as a fuel source, you can try a few methods. One way is to use a sponge on a stick to remove the liquids from the tank. This method works on floating source blocks and can be used to remove Lava and Oil as well. It is an effective and commonly used approach.
- Obtain a sponge and a stick: You will need a sponge, which can be crafted or found as a rare drop from certain aquatic creatures, and a stick, which can be crafted from two wooden planks.
- Combine the sponge and the stick: Simply combine the sponge and the stick in your crafting grid to create the "sponge on a stick" tool.
- Right-click or use the tool: With the "sponge on a stick" in your hand, right-click on the liquid you wish to remove, or use the tool by left-clicking if that is your preferred control setting.
- Absorb the liquid: The sponge on a stick will absorb the liquid, removing it from the tank or the desired area. Repeat this process as needed to remove all the liquid.
It is important to note that while this method is effective for removing liquids, it may not be the fastest option for large volumes of liquid. In such cases, other methods, such as using a fluid transposer or bucket voids from Botania, may be more efficient. However, for quick and easy removal of liquids, the sponge on a stick is a handy tool to have and use regularly.
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Break the tanks and put them in a fluid transposer
If you're looking to disable OpenBlocks tanks as a fuel source, one way to do it is by breaking the tanks and putting them in a fluid transposer. This method will instantly dispose of the fluid inside.
The OpenBlocks Tank is a block from the OpenBlocks mod that acts as a dynamic multi-block fluid storage solution. Each tank block can hold up to 16 buckets of any liquid, and it will retain the liquid even when picked up. However, it's important to note that only one type of liquid can be placed in a single tank or set of connected tanks.
To effectively use the fluid transposer method, you have a few options. One approach is to pair the transposer with a magma crucible, which is a common practice. This allows you to place most tanks in the crucible, drain them, and then transfer the contents into the transposer. Another option is to use pipes to pump the fluids in or out of the tanks and the transposer. For example, you can use EnderIO Fluid Conduits or Thermal Expansion Fluiducts and configure them with redstone to control the flow of fluids.
Additionally, you can use a sponge on a stick to remove liquids from an area, including water, lava, and oil. This method can be particularly useful if you need to dispose of large amounts of liquid quickly.
By following these steps and utilizing the fluid transposer, you can effectively disable OpenBlocks tanks as a fuel source by breaking the tanks and transferring their contents elsewhere for disposal or further use.
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Use the fuel priority system and/or action groups
To disable OpenBlock tanks as a fuel source, one option is to use the fuel priority system and/or action groups. This method is particularly useful if you are doing "Asparagus staging", where you jettison off different tanks as they get used up.
To set up Asparagus staging, you will first need to turn on advanced tweakables in the options menu for the fuel priority system. Then, prioritize the outermost tanks for the highest consumption. This means that you will need to manually watch the tank fuel levels and press the space bar when the outermost tanks are empty, repeating this step as each set of tanks is consumed.
Another option is to use action groups to activate, deactivate, or toggle fuel tanks. This can be useful if you want to create a custom abort system or work on SSTO projects. By right-clicking on each of the decouplers in the VAB, you can set them to allow fuel transfer and adjust which ones drain first by assigning them different priority levels.
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