What is an accumulator tank?
First, let's start with some basics. An accumulator tank is essentially a pressure vessel that stores water under pressure, allowing for a constant supply of water without the need for the pump to run continuously. As water is used from the system, the pressure in the tank drops, and the pump will kick in to bring the pressure back up. This cycle continues as needed, ensuring that water is always available at a consistent pressure.
Benefits of an accumulator tank in a conversion van
Now, let's look at why an accumulator tank might be beneficial in a campervan. One of the main reasons is that it can reduce the strain on the water pump, potentially prolonging its lifespan. When a pump runs continuously, it can wear out more quickly and may require more frequent maintenance or replacement. By using an accumulator tank, the pump only needs to run when the pressure in the tank drops, reducing its overall workload.
Another benefit of using an accumulator tank in a campervan is that it can help conserve energy. Since the pump doesn't need to run as frequently, it uses less power overall, which can be especially important if you're relying on solar panels or batteries to power your campervan's systems. Additionally, using an accumulator tank can help reduce noise and vibration from the water pump, creating a more comfortable and peaceful environment inside the campervan - this is a pretty substantial benefit when living in such small confines..
In terms of practicality, an accumulator tank can make it easier to use the campervan's plumbing system in certain situations. For example, if you're using the sink to wash dishes, an accumulator tank helps to ensure that water pressure remains steady even as you turn the faucet on and off. This can be particularly useful if you're trying to conserve water or if you need to clean dishes thoroughly.
Is an accumulator tank required in a van build?
It's worth noting that not all campervans require an accumulator tank, but most incorporate one. If you're only using your campervan occasionally or if you're not concerned about fluctuations in water pressure, then you may not need one. However, if you plan to use your campervan frequently or for extended periods of time, an accumulator tank can be a valuable addition to your plumbing system. Given how cheap the tanks typically are, and how easy they are to install, most owners decide to add them to the plumbing system.
When choosing an accumulator tank for your campervan, there are a few factors to consider. The size of the tank should be appropriate for your needs, and the pressure rating should match that of your water pump. Additionally, you'll want to ensure that the tank is installed in a location that allows for easy access and maintenance.
Where should an accumulator tank be installed in a van build?
When it comes to installing an accumulator tank in a van build, there are a few factors to consider to ensure that it is installed in the most effective location for your specific setup. The following are some general guidelines to keep in mind:
Near the water pump: The accumulator tank should be installed as close to the water pump as possible. This is because the tank's purpose is to maintain water pressure, and it can only do that if it is located before the first outlet (faucet, showerhead, etc.) in the system. If the accumulator tank is too far away from the pump, it may not be able to maintain consistent pressure throughout the plumbing system. In other words, the accumulator should be installed after the pump on the pressurized side of the water system (meaning between the pump and your water outlet, like the sink).
In a convenient and accessible location: The accumulator tank should be installed in a location that is easily accessible for maintenance and inspection. This can be particularly important if you plan to use your van build for extended periods of time, as the tank may need to be serviced periodically.
In a secure location: This is especially important if you plan to install the tank above the waterline, as it could cause damage or injury in the event of an accident.
In a location with proper ventilation: Accumulator tanks can generate heat as they operate, so it's important to install them in a location with adequate ventilation to prevent overheating.
In a secure / protected location: The accumulator tank should be installed securely to prevent movement while driving.Accumulator tanks can be vulnerable to damage from debris or other objects in the van, so it's important to install them in a location that is protected from potential impacts.
What should the accumulator tank pressure be set to in a van build?
The pressure setting for an accumulator tank in a campervan will depend on a few factors, including the size of the tank, the flow rate of your water pump, and the water pressure requirements of your appliances and fixtures.
In general, the pressure setting for an accumulator tank should be set to match the cut-in pressure of your water pump. This is the pressure at which the water pump turns on to begin pumping water through the system. Most water pumps have a cut-in pressure between 30 and 50 PSI (pounds per square inch), so most accumulator tanks’ pressure should also be set within this range.
To determine the correct pressure setting for your accumulator tank, you can follow these steps:
Check the manufacturer's specifications for your water pump to determine the cut-in pressure.
Set the accumulator tank pressure to match the cut-in pressure of your water pump. You can adjust the pressure using a tire gauge and a pressure switch, which may be included with your accumulator tank kit.
Turn on the water pump and open one or more faucets to allow water to flow through the system. The accumulator tank should begin filling with water and pressurizing the system.
Monitor the pressure gauge on the accumulator tank as the water flows through the system. The pressure should remain within the range of your water pump's cut-in pressure.
Adjust the pressure setting on the accumulator tank as needed to ensure that the pressure remains consistent and within the appropriate range.
It's important to note that setting the accumulator tank pressure too high can cause excess wear and tear on the water pump and plumbing system, while setting it too low may not provide enough pressure for some appliances and fixtures. So, it's important to ensure that the pressure setting is appropriate for your specific setup to ensure optimal performance and longevity.